427 building 454 block 396 crankshaft by Realsteel 

The heads I went 820's 113cc The 781 are around 123cc the gears are all stock in my 1971 Monte Carlo so at take off the rpm's 2200 - so the faster I go the better the torq. & HP 400 turbo 12 bolt diff 2.73 gears my business coupe is a freeway flyer ... BB Chevy 427, Bore 4.280, Stroke 3.760, Rod Length 6.135, Dome +26cc, Hydraulic Flat Tappet, Advertised Duration 284/284, Lift .519/.519 Fel-Pro Performance Head Gaskets SFL17046 Compressed Thickness (in): 0.039 in.. Bowtie GM Performance 12363406 Big Block Chevy 454/502 Aluminum Intake Manifold edelbrook 1411 carb

REALSTEEL MUSCLE CARS Thanks for the info! Sounds awesome, can't wait to see your next update! I am trying to find a shop now who will work with me. I just want to do a stock overhaul using the 427 (3.76 stroke) crank, my rods and use some hypereutectic (if possible??) +20 domes. Going to sell the 781's to someone I know doing a numbers build. I will take money and invest in some aluminum heads setup to run a hydraulic roller. I hope to setup compression somewhere around 9.5:1 - 10:1. I want to burn pump gas. I don't want a cam that requires anything more than 2500 stall if possible. I have a built 200 4R that will handle up to 700 lb ft torque, more than I will make!! I have a 9" rear with 370 locker. Possibly could change gears all the way up to 410's. Don't know yet. Planning on 28"-29" rear tires. I been looking into a 'three deuces' setup for up top.

The domes i went with are +26 domes they weighed more, you could go with a lighter pin and lighten up the rods so the balance job wont kill your budget. Anyways I have a stock converter and stock gears 2.73 Off the line it ain't bad but it pulls harder the faster I go over 50 you could really feel the torq. I have 700r4 in my Elco with 3.73 gears in it 383 stoker it pull hard off the line but it don't get better with speed.....

REALSTEEL MUSCLE CARS Yeah, you can't outrun the legs on a BIG BLOCK!!! I thought that a 427 BBC would start to run away from a small block. Seems like 427 hook quicker off the line. Traded my cast 454 crank for that forged 427 crank, CHA-CHING!!! I think shop said my block will be more like 433 CID bore .030" over. Should give her some more power. I sold the stock 454 rods/pistons to a kid down the street for $200, his offer. He thinks he can make them work in his project??? I am selling the 781 heads tomorrow, $500. He might give me $100 for the stock intake too. When I get that cash I will buy the aluminum heads. I had a stock, running, SBC 350 I sold for $800 yesterday. Thought about using it but decided not to once I bought this complete 454 for $250.... Found a deal on some Scat rods and some 427 .030" over bore pistons with +30's. I can mill down domes to precisely control comp ratio. Going to work on picking the right cam grind now. I plan on using a hydraulic roller. If I remember machining total should be around $350.

Can a 396 block be overbored and turned into a 427 BB?

I have 2 steel cranks $$??

I have built a few 396 with cast cranks never thought to much about (street rats) 425 HP

@@realsteelmotorcars2894 I believe all the L78s 396 were all forged cranks ... I like this high comp pre 71

@@super63strat come to think of if the last 2 396's I built where 402's definently cast 71's 402's are okay for street if you change pistons or heads get them 9.5 to 1...

@@realsteelmotorcars2894 agreed , last 402 I changed the open chamber to A closed chamber oval port like a St of. # 206 , 97 cc with closed dome pistons jumped up the compression to I believe 10 :1 or little more .... first 402s are great blocks .......

Just being nostalgic. The very first car I seen get the Tires off the ground was a 1967 Corvette fast back with a 427... my next engine I will be building 350 block with 307 ... Ending up with a 327. Why do that right. 1st car I owned 65 impala SS ya with a 327 old school old fool...living in the past .....

Also a 427 has great midrange power,.... for the street it works very well

Thanks I will be building a 496 For my next project... I ended up pulling the 427 out of the MonteCarlo Build the 402 with 41cc Domes 049 heads..510 Lift cam.. 427 is going to installed In a 1967 el camino SS Anything built in the 60's Running a 427 turns in To a SS........

Balancing is always a concern, I always wiegh the pistons and rods that was used with crankshaft In this case I replaced rods and pistons with lighter weight stuff. My rule of thumb is lighter is better So far so good, I don't always Balance my builds, I mostly stick to stock type replacement parts, dome pistons can be headache Due to wieght differences , change from dish to flat top not a problem as long as pistons come from summit or a like dealer that lists the weight of the pistons. I always factor in wieght, as well as how the engine was before, but if I am say installing mix match parts with dome pistons go light wieght

The 396 and 427 used the same crank, both were internally balanced. The 427 was a forged crank but so were alot of the 396 cranks

There's no replacement for displacement. But in 1967 The 454 was A 427 . My 1967 el camino SS427 has Enough power for the streets not enough for the track . The tuner turbos Get a run for there money Until I let them catch up.

I was hear the 366 crankshaft is heavier as well as 427 save On balance $

Yeah I bet the truck 3.76” cranks are tricky to balance considering the amount of bob weight those engines had, would need a lot of weight removed to work in a 9.8” deck application...

De stroking a 454 is leaving horsepower and torque on the table. Looks like this person in after higher rpms should of done a small block and have a wind up toy.

Yes O.E. have 17 cc domes

Okay it's a 30 over 427

If you bore a 454 30 over that makes it a 461 or 468 but if take a 396 crank and connecting rod and put them In a stock 454 you making a 427 but if the 454 block is bored 30 over what does that make it because i did the same thing you are doing

All I'm trying to say is it changes the cubic inches I'm still trying to find out what does it make it if the 454 block is bored 30 over that's all when your done I hope you post it i want to see run its going to be bad ass

@@joelane5698 I checked the numbers out on summit Racing calculator 4.280 × 3.76 x 8 =432.77 I ran the engine in my montecarlo for 3,000 miles Ended up removing it from the montecarlo and rebuilt the 402, .40 0ver = 4.165 x 3.76 x 8 = 409 cubic inch... I am now finishing up on 1967 el camino with the 432.77 video coming soon Just so you know 4.00 stroke x 4.225 bore x 8 = 454 Change stroke and bore will raise or lower engine size. Subscribe so you will be notified when the next video is out 454

@@joelane5698 433

Good question . #1 the 427 is bad ass #2 I already had the flex plate and balancer #3 it is going in a street car that will get pushed to the limit and the shorter stroke will reach higher RPM's less chance of It flying apart ... Since building this beast I found a new Home for it 1967 El Camino that'll Get the SS 427 badges and I know There is not a SS El Camino but If there was that's what I would Of wanted......so I am now making The Elco that never was... It will go like this SS hood SS badges possi rear end 700r4 SS interior gauge Package and a racing Strip...I have Everything To make It happen... Just need to send it Out for paint...

Not any real gains but if you're building a classic car it's a era thing. You can get a good look at it rolling In the 1967 El Camino on my channel

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xf-EMzPKj2w.html

@@realsteelmotorcars2894 yea I get it. Makes sense 👍.

It'll rev faster.

Most tracks are running 1/8 mile now. The higher rpms would be an advantage in this scenario i believe. If it were a 1/4 mile race the 454 would have an advantage on the top end

balancing is costly 250.00 in my area and limited on places even doing it .

@@realsteelmotorcars2894 yea about the same here, if I stay local I got 1 place that can do it 🙄 next closest place is 45min-1hr away

@@jjmccloud if you have more time than money amazon has Sealed Power pistons 150.00 -180.00 you can even get rings with them. if your not boring out the engine , reusing the rods you may end up spending 200.00 or so less ... lots of different ways to reach 10 to 1 for less. $ $ BTW what casting numbers do the heads have

So you're building a BBC 454 Externally balanced? With dish pistons 8.5 to 1

Because he wants a 427. Some people get boners for them for some reason.

@@jrod264winmag The shorter stroke has less piston speed, therefore you can spin them faster, but you forfeit torque at the lower speeds, not good for a street motor.

@@joe-hp4nk I'm total aware of all that. There's a reason people build strokers like 383's they are just better. I will never build another high performance 350, 383 is much better and my 454 ran better than my 427 with same heads, cam, carb, headers and compression.

I have wanted a 427 I never thought in terms of a boner...ya maybe good way to sum it up... I have a bad ass 383 stoker that is a might mouse if i do say so myself. really the only way to go on building a 350 I little history the first street car I ever seen get the front tires off the ground 1967 Vette fast back with a 427 in it, that was back in 71. love at first site. anyways I ran this engine for a while in my 1971 MonteCarlo of course it wasn't the bad ass Vette experience but it was fun as can be to drive. I ended up building the 402 that came out of it check out 396/402 BBC with dome pistons 9.6 to 1 compression on you tube so this may or may not make more sense to a chevy guy my other project Is a 1967 El Camino SS so we all know there never was... but with a SS427 badge on the grill 427 flags on fenders SS hood buckets seats and a fresh console 700R4 trans pissi diff with 373 gears and 427 under the hood. what never was can be....I sold my other El Camino with was scary fast with said 383 in it along with trans and diff, new owner got other left over drive train... He paid a fair price and was happy with his new toy. If I was looking for big power I would built 496.... just wanted a

I live in Ontario ca by the way what are you working with and what do you want . give me engine size trans and diff is it all stock. do you want to build or refresh???

@@realsteelmotorcars2894 I bought a 66 el camino shell 5 years ago I have a 350 engine with a th350 trans.. Everything has "supposedly" been hooked up that's what the last mechanic said I need the brakes done and bleed with the master cylinder and checked what else my engine needs to get her to turn on

@@funes3699 do a video with what you got going remove air cleaner to show carburetor and distributor including linkage as well as wiring also , show and tell what you can on the brake work needed you can make video private and share it with who ever....the el camino I got going right now so far I installed a poss-i differential and sent it out for paint its back now . stripped of everything I removed a good 350 engine and trans that I installed in different El Camino that was just sold. I know exactly what your working with and could telling you where to go next.

I ended up finding a home for the 427 In a tribute to the SS 1967 el camino That was never build... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xf-EMzPKj2w.html Not as fast as the bigger BBC But still a fun to drive hot rod.