MOPAR 340 Dyno Power Challenge - PART 1

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Recently, Nick challenged you to guess the power that this 340 would make on the dyno. Today, we find out. This is PART 1 of a two part video.
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Опубликовано:

27 сен 2024

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Комментарии : 358

@brianhdueck3372 3 года назад

340 engines have never disappointed me. Love me some 340!

@CoastalAutoReactionCAR 3 года назад

I love how Nicks makes sure the engine is tuned correctly before he starts romping on it to get numbers. Years and experience allow this kind of patience :)

@theodorekeefer1093 2 года назад

I agree this is no reason to ruin a engine he is a very wise fella

@apocolypse11 8 месяцев назад

Yeah guys with classic cars don't even know that timing is a thing. They rather breakdown everywhere.

@bradhoward8950 3 года назад

I love the sound of small block Mopars

@michaelferro897 3 года назад

400 horses, we're in 440 country with that number, and that's a beautiful thing!!! no worries Nick, I know you'll hit it, and then some!!!! I was guessing around 50 horsepower less, oh well, I'm glad I was under, so we get to see this baby sing a stronger song than I thought!!! thanks again guys.

@BuzzLOLOL 3 года назад

I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP... those heads don't flow enough to match up well with that 245 degrees duration at .050" lift '500 HP' cam !!!

@davidrasch3082 3 года назад

I value Nick's thinking out loud. There's wisdom to be mined about engines and how they work.

@bradhoward8950 3 года назад

Had a 71 340 duster. Miss that girl

@Onewheelordeal 3 года назад

My Dad was a 340 nut, owned 10+ Plymouth Duster drag cars. He would daily a 6cyl and his favorite was a 340 wound out on nitrous for the strip

@robertorhymes 3 года назад

Waow this is only part one! How much power can you get out of a 340? The time has come This is gonna be fun Nick has got to break in a brand new cam Warming her up for 20 minutes is the plan Nick is the man!

@LunarOutlawsGarage 3 года назад

Oh man this is going to be a good video. Those 340s are like hens teeth boy I would be very happy to own one.

@LunarOutlawsGarage 3 года назад

after the first Dino and finding out that the crankshaft was total Junk I put a 340 crank in the 318 for the 72 satellite. Even with the thermal quote that engine runs great now, but a 340 would really wake that car up.

@NicksGarage 3 года назад

Good morning, B.

@RAMMBRUTE 3 года назад

@@LunarOutlawsGarage What's a thermal quote?

@LunarOutlawsGarage 3 года назад

@@RAMMBRUTE lol Siri let me down thermoquad**

@spurgear4 3 года назад

I have a 318 in my 69 swinger because 340s are pretty hard to come by.

@scuffmacgillicutty7509 3 года назад

Ladies and gents start your Monday! Winter is in the rear view!

@NicksGarage 3 года назад

Right on! Let's see some sunshine.

@mikestackhouse9001 3 года назад

Is the snow gone yet in Laval?

@nickpanaritis4122 3 года назад

@@mikestackhouse9001 . There is some here and there.

@mikestackhouse9001 3 года назад

We hit 70 deg F today in West Central Wisconsin. Love it!

@guyforlogos 3 года назад

Says you! It was in the 80’s last week here in southern Mn. Today, 30 degrees. :(

@howardgarrett7865 3 года назад

Love these Monday morning videos with my coffee especially when I get a Monday off after working the weekend

@NicksGarage 3 года назад

Enjoy!

@mynameis9057 3 года назад

Now that's impressive, i've always loved the 340s!!! Along with Nick and crew!!! Thanks again guys!

@musclecarmitch908 3 года назад

Great to see a 340 Nick! I love my 340! Thanks for sharing!

@RAMMBRUTE 3 года назад

Hey Nick you're dyno should be equipped with a Breakin Cycle, I use mine all the time--it varies the load and RPM on a timer--works excellent.

@nickpanaritis4122 3 года назад

RAM. Good point, I should look into it.

@BuzzLOLOL 3 года назад

Yeah, I always vary break in RPMS from 1500 - 2500 RPMs to avoid sympathetic vibrations from setting in...

@MikeJBlues 3 года назад

Awsome blast on the Dyno. That is one nice carburetor

@eugenecastles7475 3 года назад

Good Morning, Nick and crew. No better way to start a Monday than a hot cup of coffee, and Nick's Garage. The sound of horsepower, and the smell of gasoline in the morning, oh yeah!! The 340 didn't make as much as I thought it would, but it will still be a great engine in a lightweight car like the Demon. It will be a blast to drive on the street. I loved the video George, very entertaining.

@NicksGarage 3 года назад

Thanks for joining us, sir. Mopar and coffee.. what could be better? Well, perhaps more Charger 500 content. We’re all looking forward to that.

@eugenecastles7475 3 года назад

@@NicksGarage I'm looking forward to more Charger 500 updates as well, along with a lot of others who watch Nick's Garage. I hope to see the Charger back at Nick's soon.

@sylvainbernard8027 3 года назад

exact m.Castle ,we looking for update on the charger. We all wait To see it.

@nickpanaritis4122 3 года назад

@@eugenecastles7475 . I had a talk with Rodger this morning. I need the car back so I can start putting it back together. He has Fern back working on the Charger full time since last week. He had taken all the latches and hinges to start lining up the doors, hood and trunk. I was told that oliver was working on the Charger during the weekends. Many are asking about the 500. Let's get going.

@1958johndeere620 3 года назад

With those heads, compression ratio, carb, headers, big cam, I was thinking higher. I was wrong, what else is new. LOL!

@BuzzLOLOL 3 года назад

I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP...

@chrisrye9128 11 месяцев назад

There's no sckul like the ol' skul. Water bottle over laser temp gauge. Classic. Luv it.

@NicksGarage 11 месяцев назад

Never runs out of batteries.

@bradoconnor9868 3 года назад

Great footage thanks Nick. 340's rock!

@NicksGarage 3 года назад

Glad you enjoyed it, Brad.

@ToomasTelling 3 года назад

it another great moday with Nick and the gang. just in time as well its my afternoon coffee break time :). the resturant i work for has been shut down for a month now so i have been home rewatching all the videos. Also i have kept an eye on the Vice grip Garage build of the Chevelle called independence.

@NicksGarage 3 года назад

Love that! Hope your restaurant is back up and running soon.

@ToomasTelling 3 года назад

@@NicksGarage by the looks of things we might be down for another month. But the good news is i got a job offer from the military and i took them up on it :) the job will be pretty much the same but the pay is goning to be better. Right now i have next to no salary and i cant have fun with cool american cars if i got no cash.

@onedayiwillmakesomecontent 3 года назад

My uncle was part of the experimental team here at Chrysler Aus when they were thinking of putting a 340 in the Aussie Charger!

@NicksGarage 3 года назад

Good days.

@robertchinnock8017 3 года назад

Love our aussie muscle cars.. there is a thing on youtube that you can look at.. its called narangba chook shed muscle cars and its worth seeing.. i even told nick from here about it

@nickpanaritis4122 3 года назад

Shaun. Have you ever finished the car with your brother ?

@onedayiwillmakesomecontent 3 года назад

@@nickpanaritis4122 hey Nick. No, sadly it is back at my shed after ANOTHER shop messed me around. Up on the stacker hoist now keeping the dust off my driving muscle car! The engine is done. I'll get a drive of Kowalski before I get to drive mine again I think 🤣

@nickpanaritis4122 3 года назад

@@onedayiwillmakesomecontent. Come anytime and join me with Kowalski.

@thomasward4505 3 года назад

Non-contact thermometers help with tuning problems, the water works great for misfiring cylinders

@captainkirk4514 3 года назад

It's so cool, as well as educational watching these tests. When it comes to getting the most performance out of any engine, Nick is a old school perfectionist! However, I do have point out that the starter needs a couple of shims, its whining pretty good on starting.

@davidingling9791 3 года назад

A 340 in a demon hell yeah! U are awesome Nick!

@NicksGarage 3 года назад

Thanks, David.

@davidingling9791 3 года назад

@@NicksGarage u are probably my favorite channel i don't even fast forward lol!

@Firion13 3 года назад

Happy Canada Day to our hotrod brother and sisters up north. Thank you for being one of our greatest allies. I hope y'all have an amazing day celebrating. God bless.

@NicksGarage 3 года назад

Thank you, Cody.

@JohnBrown-cz7ww 3 года назад

Most laser thermometers can only read so high, that one says fail because its beyond it capability.

@kurtzimmerman1637 3 года назад

nick, you'll get as much power out of that engine as you want. thanks for another great video!

@NicksGarage 3 года назад

You bet

@HemiRoadrunner 3 года назад

Can wait for my 70 Hemi road runner to come home from Dave Dudek’s shop!

@frankwoodward9914 2 года назад

The 340 BB killer great engine

@PrincessTS01 3 года назад

when you make a 2 part show post it on separate days, I nearly missed this part 1, i already watched part 2.

@NicksGarage 3 года назад

Sorry if we didn't make it clear enough. Thanks for watching!

@dlisinch 5 месяцев назад

I had a 340 back in the day. What would be interesting to see on your dyno is a small block MOPAR wth Direct-connection W2 heads and/or W@ Econo heads. Apparently, these will make the small block sing.

@bcbloc02 3 года назад

Had a buddy with a NA340 making 600+hp it pretty much only ran 6000-9000rpm. Drag car of course so it was a lot wilder build. Stock factory forged crank and oliver rods.

@NicksGarage 3 года назад

Very cool!

@joeljenkins2876 3 года назад

Good morning, Nick and the guys!!! Just now watching the videos: anxious to see how close my estimate was (400-420 hp, 450 torque)

@NicksGarage 3 года назад

Morning!

@BuzzLOLOL 3 года назад

I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP...

@dinadaughtry8993 2 года назад

@@BuzzLOLOL definitely,I like trick flow over Edelbrock any day

@meowerstationone3793 3 года назад

Finally got to watch part 1. The suspense is killing me! Now on to part 2....

@NicksGarage 3 года назад

Thanks for joining us .

@donaldcoalson4347 3 года назад

Believe I guessed around 405hp and 450 torque, let's see, watching now

@BuzzLOLOL 3 года назад

I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP...

@donaldcoalson4347 3 года назад

@@BuzzLOLOL I know the manufacturers run these new motors with aluminum heads etc. Run A little warmer, wonder if that would have made a difference and maybe a single plane intake? No expert, just wondering!

@peteloomis8456 3 года назад

@@donaldcoalson4347 The aluminum heads run cooler especially in the combustion chambers so it allows you to run more advance if necessary & also allows you to run a higher compression ratio piston without pinging & detonation problems on pump gas . I think the dual plane intake might be choking off power as well & a bigger cam with more duration will help it make more power as well but who knows if the owner is willing to swap out the cam for something bigger . He could go with 1.6 rockers to try & get more lift out of the cam to work those heads more if they weren't used on this build already but changing to a 1.6 rocker only affects lift not duration . It seemed to me that also this engine wasn't really spinning that high of RPMs shutting down under 6,000 to me it looked like which is strange being most of the 340s will rev right to 6,500 or more . I am kind of disapointed in this build because he's just under 400 hp with all this stuff on it when a buddy of mine just dynoed his 68 440 4 barrel engine he basically did a mild rebuild on for his 68 Plymouth GTX convertible that just was bored over .030 stock 906 heads done with new valves guides & seats but no porting or over sized valves or bowl blending but used a dual pattern cam that wasn't much more than what it had stock with the lifts & durations & just a edelbrock performer intake through the stock exhaust manifolds & it made 400 hp & 460+ torque down at 4,200 RPMs after it's break in & the rings seated so something isn't right with this 340 . I figured maybe Nick would have tried a spacer between the carburetor just to see if the extra plenum area would help with the hp or not because some times it does some times it doesn't but maybe that's part of the next video 🤔 .

@donaldcoalson4347 3 года назад

@@peteloomis8456 yep, be interesting to see the changes if they do mess with it some more! 😀

@BuzzLOLOL 3 года назад

@@donaldcoalson4347 - Eddy RPM intake good until about 500 HP and that 245 duration cam wants to make 500 HP, but those heads holding it down, plus parts are mismatched to each other... carb. too big... cam too big...

@richdelgatto2522 3 года назад

The Legend is, Chrysler underrated the 340 because it was making numbers in big block territory.

@JalopyTechnology 3 года назад

Insurance companies either would mot insure high HP motors or their rates were too high

@OldGriz708 3 года назад

That's the legend, the reality is the 340 was a failure and was quickly replaced with the 360 and it wasn't much better.

@cuzz63 3 года назад

legends is another word for BS..

@guyforlogos 3 года назад

@@OldGriz708 the 340 was a failure? Umm, I think you are a bit dim if you think that. The 360 came to make up for the drop in compression in the early 70’s.

@OldGriz708 3 года назад

@@guyforlogos Think what you like but the numbers back me up.

@NickedBlade 3 года назад

NICKS GARAGE ...HERE WE GO!

@dstich1164 3 года назад

i enjoyed the video when you ran 3 different types of exhaust on mopar 440 that was awesome. who would've thought factory exhaust would perform as close to headers!!

@chrischiampo7647 3 года назад

😲😮😲 That Was Great Nick n Crew Love these Episodes 😀😀😀

@michaelmoon6675 2 года назад

It might be a good idea to have a hot water tank for break in..🆕👍🤔😎

@rickyrocket3771 3 года назад

I'm getting ready to watch the dino test and the 340 I'm saying about 5:25

@nathankerry3256 3 года назад

Got love nicks garage like were else do you get to see so many different types of engine on the dyno an I think the 340 well make 375 hp

@NicksGarage 3 года назад

Thanks for joining us, Nathan.

@danaglass5394 3 года назад

Old school water bottle to check header tubes for cylinder function still the best way. No exact temperature specs. No batteries needed.

@jimmyraythomason1 3 года назад

Old skool definitely works but so does new tech. We used both when servicing our fleet of diesels (before I retired 11 years ago).

@jonutley5357 3 года назад

does anyone read flame patterns on plug ceramics anymore?

@josephfine3394 3 года назад

Nick, I've been using Permatex Anaerobic Gasket Maker in the blue squeeze tube for dipsticks and hard to seal small engine parts. Works where the gap is small and even works with gaskets. Can the distributor mechanical advance be adjusted to come in higher? Nice to see a test on the little giant killer 340 Mopar. Masterful job building it, as always at Nick's Garage.

@nickpanaritis4122 3 года назад

Joe. Yes you can. You have to replace the springs in the distributor.

@Zachsmoparandmashedpotatos 3 года назад

I’m late but I made it! I couldn’t watch while at the dentist 🦷 lol

@NicksGarage 3 года назад

No worries, Zach. Hope it wasn't too painful.

@Zachsmoparandmashedpotatos 3 года назад

@@NicksGarage just a cleaning 😁

@wendlormsby 3 года назад

With an Edelbrock Victor single plenum intake it would make 420-430 hp all day.

@dinadaughtry8993 2 года назад

The 340is hard to find down here in Florida must have sold a lot more of them in Canada,I am of the opinion that the 340 is Mopars most powerful small block

@karlsracing8422 3 года назад

Thumper carbs are like jewelry.

@asserpatriota 3 года назад

the big block killer

@jeffjeff6614 3 года назад

Im thinking 400hp cause that's what my 73 Duster...made but I had a 340 magnum

@BuzzLOLOL 3 года назад

@frankmoore159 3 года назад

Headers a must on the 340

@tomupchurch4911 3 года назад

👽grab a Milwaukee laser temp. reader and it'll never go south on you.

@carguy0000 3 года назад

Hi Nick , another great video from Nick and his crew >>> what RPM do you like all your timing in at for the street . like mine in at around 3000 rpm

@nickpanaritis4122 3 года назад

Car. Same as yours, 3000.

@frankmoore159 3 года назад

Are used to run a 480 left with a 299 duration in them with a 3500 stall speed 410 high volume trw oil pump 650 cfm dual pumper flat top piston12’s in a 72 demon 727 Fairbanks full comp

@BuzzLOLOL 3 года назад

Your cam prolly a better match... I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP... those heads don't flow enough to match up well with that 245 degrees duration at .050" lift '500 HP' cam !!!

@kennickerson2623 3 года назад

I would also be curious to see what the difference would be between the 4bbl and a six pack

@Onewheelordeal 3 года назад

Biggest difference would be the huge headache of setting up and balancing 3 carbs, and the crap driveability when you can't

@peteloomis8456 3 года назад

Problem is now the good intake manifold companies have big single plane intakes that flow better than the 6 pack set up as well as some dual four barrel stuff only using 1 big carburetor which is not only cheaper to buy but also easier to tune & stays tuned better than a multiple carburetor set up . My buddy had a 6 pack on his 69 440 charger back in the late 70s & it was a pain in the ass always having to adjust the mixture screws & getting the linkage & carbs synched after only a few tromps on it either at the strip or hot rodding it on the streets I remember . They look cool but back in the day the mixture screws would often loosen up once the cork seals went bad that helped seal the mixture screws off on the float bowls then it wouldn't idle right plus the linkage would get worn out & they could be more work than it was worth but they sure looked cool especially when at the gas station checking fluids & guys would come up & look at it & ask questions about how it performed which wasn't bad but if not kept in tune it could hurt you in a race as well as drivability.

@MrMark1325 3 года назад

CFM is CFM. That motor won't pull more than 625 cfm at 5500 rpm, anything over that is a waste.

@sithlordjeffbledsoe651 3 года назад

Small and big block Chevy dist in back- small and big block ford dist in front- mopar small block dist in back big block dist in front lol when I was a kid learning I found that curios

@frankmoore159 3 года назад

Love the 340 snap for a small block that’s my world not a small block Chevy god even knows them things are screamers 8k rpm 350 / 350-360 hp man I remember those 327 having 350 hp factory

@BuzzLOLOL 3 года назад

@jasonhooey5677 2 года назад

I'm not worried about the dip stick. Mentions it so often i could've made a drinking game out of it

@jasonrobertson2238 3 года назад

420 HP!!

@BuzzLOLOL 3 года назад

@michaelstrangefranke7002 3 года назад

Simple fix on that oil leak pull the dipstick out put a screwdriver in there that the handle is just a little bit bigger than the tube take a hammer and tap it into place works every time

@bryanbressem5026 3 года назад

385 hp

@CoastalAutoReactionCAR 3 года назад

340’s alway surprise people! Giant killer! Id live to roll an A-Body 340 Car!! I should do something with my 340! Id guess 360hp on this one maybe more!

@NicksGarage 3 года назад

Right on!

@shaggy2scooby4you 3 года назад

new deserves to be hooked up to your super flow air mix meter

@gruberstein 3 года назад

My fuel cup is a tuna can.

@moparedtn 3 года назад

*NICK!* Needs more RPM'S, my man!! Just sayin' - it shouldn't be "all in" at that speed with those heads and that cam. Just my two cents... Trivia time, Mopar guys: Other than the 426 hemi itself, what was the only other performance engine design that came out of Chrysler Engineering to never have a more "pedestrian"/regular service engine as an origin that it came from? Answer: The 340. There were no "passenger car" or truck versions of the 340 - it was always a performance engine, from the get-go, whether in Magnum or T/A versions. Y'all be SUPPORTING Nick's Garage! Patreon, merch, any way you want to do it, help support this channel! -Ed on the Ridge

@BuzzLOLOL 3 года назад

@moparedtn 3 года назад

@@BuzzLOLOL I defer to your apparent expertise there - but when Nick put spacers under the rocker shafts he got the HP he was after, so the heads must have had that much in them. The mistake people make with the Edelbrock heads is that they're opyimized right out of the box. They aren't - just like any other head, they need some work to realize their potential.

@BuzzLOLOL 3 года назад

@@moparedtn - Shims under rockers are just to get the valve lash correct... if shims give power, then something was wrong... or the correct length pushrods could have been used...

@moparedtn 3 года назад

@@BuzzLOLOL Well yeah something wasn't right, hence why it helped. :-)

@John-tq4bf 3 года назад

I have often wondered why you don't just build a recycle system for your water use.?

@rexharris8893 3 года назад

wish i could of tuned my 73 plymouth road runner

@CORVAIRWILD 3 года назад

Driving a rust free 2001 CrV awd

@patricksnyder3446 3 года назад

What would help make MORE HP 3x2 or 4 bbl.

@danohstoolbox 3 года назад

sounds like a high torque starter

@NicksGarage 3 года назад

Poor little starter.. it was on its last legs.

@michaelmckinney401 Год назад

They did it on all of em they also dynoed em at the rear wheels 15:53 instead of flywheel so that also contributed to the difference

@jeffjeff6614 3 года назад

I had 2 440s is it normal for those engines to run hot....in summer they both did no matter what

@nickpanaritis4122 3 года назад

Jeff. Not really. It all depends on your cooling system. Very rare I have a 440 run hot. Check out my Kowalski Challenger. It is overbored .055, 10.6 CR, and all original factory cooling system. No issues on hot days.

@maceurbi2842 3 года назад

It would have surpassed the 400 mark easily with Trick Flow heads, those Edelbrocks are just a factory replacement and marginally flow more than stock heads

@BuzzLOLOL 3 года назад

True... I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP... those heads don't flow enough to match up well with that 245 degrees duration at .050" lift '500 HP' cam !!!

@karlsracing8422 3 года назад

Those valve covers are notorious for being loud! That's why i don't use them.

@ColdSmokes 2 года назад

What kind of Oil and or additive is being used??

@westrotter7847 Месяц назад

😆 not an issue when gas was about 40 cents

@lemans310 3 года назад

Did the outside storage thaw out yet?

@NicksGarage 3 года назад

Lots of rain and warm days this last couple of weeks. The snow is almost all gone.

@nedbranson4938 4 месяца назад

Why not more RPM?

@cuzz63 3 года назад

Nick, have you ever had a cam flatten the lobes during break in?

@gerdesoto262 3 года назад

Hey Nick, I have a problem and DON‘T REMEMBER HOW TO FIX IT, Because it has bend 40 years since I fixed the last one. The issue is how to fix a carb BOIL OVER when engine is running or not? Where you got fuel running out the top of the carb. There is a spacer adapter between the carb and the intake because the carb wouldn‘t fit otherwise. And its a new carb to go with the problem. Then the owner of the car thinks close off the intake exhaust cross over. I DON‘T AGREE WITH THAT PART. NICK LET ME KNOW IF YOU HAVE A ANSWER HOW TO FIX IT

@jonutley5357 3 года назад

boil over when not running is probably float level

@HomeTipsAndTricks 3 года назад

Where were the pistons sourced? I need a set of .040 over and noticed the bore on the dyno set to 4.080. Brand?

@nickpanaritis4122 3 года назад

Home. They are RaceTech Pistons. .040 overbore. Give me a call.

@garywood60 3 года назад

I thought I was hearing a pecking !

@scottharvey7730 3 года назад

Try low strength purple or blue locktight.

@danielfarmer1334 2 года назад

How much power, , 340, to 370, closer to 370

@johnbarron8042 3 года назад

My 71 340 with the same edelbrock set up keeps leaking oil passed the distributor o ring. Tried changing it and adding a gasket, still leaking. What am I doing wrong???

@nickpanaritis4122 3 года назад

John. Does your engine have breathers ? If yes, put some teflon tape between the O'ring and distributor housing. Good luck.

@antisocialsecret7584 2 года назад

How big is the carb ?

@tomreyn3610 3 года назад

What is 400hp after you put water pump, p steering, Alt, and ac on it. ? And I thought that was optimistic. Heard lifter rattle when first fired. A friend just got an Un-finished machined COMPCam he had to send back. Found during build up. The state of parts nowadays is gettin sketchy.

@nickpanaritis4122 3 года назад

Tom. The noisey rockers is due to the lifters taking more time to fill up with oil. I had primed the oil pump and rotated the crank for a while on the engine stand before putting the engine on the dyno. From what I see, running the engine does the job of filling the lifters 100 %.

@chrishensley6745 3 года назад

Money spent on them heads.......it should.

@JoeCnNd 3 года назад

412 is my guess.

@watchforthewarningsigns. 3 года назад

400 up 375 ftb tq

@willefixit 3 года назад

morning nic

@PrincessTS01 3 года назад

how do you know before a build if you need shims?

@nickpanaritis4122 3 года назад

Princess. If you plane the heads, and deck the block, you get more preload on the lifters. By adding shims under the rocker shafts , it raises the shaft and therefore decreases the preload.

@craigcontofalsky4387 3 года назад

For that manifold, carb, heads and headers your peak power should be over 6,000 rpm. Maybe the cam is too small??? My stock 340's ran up to 6,000 rpm. My drag motors would go 7,200-7,500 rpm with stock heads! That's with a roller cam but you have all the goodies for 6,500+ rpm. Seems awfully flat in power?

@michaelwest359 3 года назад

I say 460!

@michaelwest359 3 года назад

I had a '71 Dart Swinger with that motor, could not get it to run right until I advanced it to 30 deg, then she ran like her butt was on fire! An mine wasn't built nearly as well as that! This was mid-80's so good gas was still available if ya knew ho to ask....

@rc300xs 3 года назад

My guess is about 410hp

@gilbertahsam643 3 года назад

This motor has a 525 lift but i wonder what was the duration on the cam this is a high race cam and 10 to 1 compression and aluminum heads with headers too ,i dont know what to say maybe he should of run roller rockers. I hope he gets 400 horse

@nickpanaritis4122 3 года назад

Gilbert. We stayed with factory rockers and 10.6 CR. Watch part 2 just after part 1.

@BuzzLOLOL 3 года назад

I predicted 435 HP and 415 lb.-ft., was close on torque but Eddy heads let us down on HP... those heads don't flow enough to match up well with that too big 245 degrees duration at .050" lift '500+ HP' cam !!!

@gilbertahsam643 3 года назад

@@BuzzLOLOL if there was a 325 duration that would be good cam and his top end would be awsome

@BuzzLOLOL 3 года назад

@@gilbertahsam643 - 225 duration @ .050" lift prolly a better match...

@gilbertahsam643 3 года назад

@@BuzzLOLOL his lift for out of the hole 525 is great but 225 duration for top end is to small 325 duration would be a great. I built my 350 mortor with a 525 lift and a 325 duration and my motor had a real good scream With 10 to 1 forge pistons and camel back heads ported out and roller rockers its was a wild car in my 56 nomad