HOW TO BUILD BLOWN BIG BLOCKS FOR TOWING, STREET AND STRIP. MILD 454 VS MEDIUM SPICY 496 VS HOT 496

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CAN I RUN BOOST FOR TOWING? HOW MUCH POWER DOES A LITTLE 174 BLOWER MAKE? HOW MUCH POWER DOES A BLOWN BIG BLOCK MAKE? IS A 496 BETTER THAN A 454? IS BIGGER BETTER? HOW MUCH BOOST CAN I RUN ON A 454? HOW MUCH BOOST CAN I RUN ON A 496 STROKER? HOW MUCH BOOST SHOULD I RUN? DO CNC PORTED HEADS AND A BIGGER CAM HELP WITH BLOWER? DOES A BIGGER BLOWER MAKE MORE POWER? CHECK OUT THIS VIDEO WHERE I RAN A MILD 454 BUILT FOR TOWING WITH BOTH A 174 BLOWER AND A 420 MEGA BLOWER. I ALSO RAN A SLIGHTLY WILDER (BUT LOW COMPRESSION) 496 WITH CANFIELD HEADS AND A BIGGER CAM WITH THE 420 BLOWER. I FINISHED OFF WITH A 496 EQUIPPED WITH AFR 315 HEADS, A COMP ROLLER CAM AND 6-71 BLOWER.

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14 окт 2024

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Комментарии : 52

@wydopnthrtl 2 месяца назад

I can only imagine being a very wealthy man and hiring someone like you to just test all kinds of engines. If I could I would. Shalom

@richardholdener1727 2 месяца назад

thnx-it would be cool

@bigmansir3745 2 месяца назад

@@richardholdener1727yo, the guys at build it yourself have finished the engine. When are you gonna test that engine?

@christopherc3017 2 месяца назад

Thank you Richard. I’m going to swap trans in my 80 c30 dually with 454 this weekend. You got me counting my money to see what’s next.

@ericwilson2585 2 месяца назад

I think I'd go with the stock(ish) 454 for towing. Because I'm sure it'd have enough torque for whatever I'd be towing and probably more reliable.

@briansipe9755 2 месяца назад

Cool stuff Richard. My current project is 500 caddy pushed out to 540 cid. Th400 and GV overdrive going in my brother's 74 F250 super cab for pulling our camper/horse trailer. Going with a dual turbo setup with a bunch of goodies from Cad Co. I loved your turbo caddy video. So looking at 870 lbsft 3400 rpm give or take cross fingers and we'll see. Hi ho silver

@richardholdener1727 2 месяца назад

good luck-sounds cool with plenty of torque

@Harrybowles1969 2 месяца назад

Man i can only imagine any of those combinations. Totally awsome 🤯❤️

@mikef-gi2dg 2 месяца назад

If I could afford it, I would go with the hot 496. 900 hp on 6 lbs of boost is the ticket for smoking your shizzle at the track for sure. I would grin ear to ear with any combination.

@DonzLockz 17 дней назад

For daily durability, with more power and okay fuel economy, I'd go 454 with the mild blower.👍🤠🇦🇺

@maxt3592 2 месяца назад

Just like she said I want the big one😂😂😂😂😂😂👌🏼

@neilsmith8790 2 месяца назад

After being spoiled by towing with lightly modified 12v cummins diesels, I would probably stick with one of those for fuel efficiency and multi hundred thousand mile overhaul intervals. That said, if I had to use a bbc to tow with, the 454 with the bigger of the two blowers would probably be my choice. Not turning much rpm would help with mileage and engine durability. Fuel would be an absolute killer with any of these though.

@kcsavers 2 месяца назад

Useful data, Richard. My choice: Chevy 502 bored@stroked to 540+ Cid. Naturally aspirated, pump gas.

@ryangulley2051 2 месяца назад

I have o e with a 14-71 blower

@Kwaka28 2 месяца назад

Reminds me of the crusher Impala blown big block.. what a unit...

@RudyRamos-fc2fm 2 месяца назад

I went to a Chaffey College car show in the past. I talked to a racer with a 350 motor, and he had a root style supercharger. He said would get about 600 HP, and he would change pulleys at the 1/4 mile. I am curious what would be a good compression ratio for his application? What parts of the motor should be forged for a blower application crankshaft, connecting rods, and pistons?

@richardholdener1727 2 месяца назад

static compression depends on octane and other components (like cam). Forged internals are a good idea for high hp applications

@akmjolnir-v4r 2 месяца назад

Great video.

@haydenjordan8441 2 месяца назад

any chance we will see comparison videos for the rest of the summit 303plus cams?

@jermainesmith4788 2 месяца назад

Wish Richard would have a tow cam comparison. Its about 7 different ones on the market.

@richardholdener1727 2 месяца назад

7 different whats?

@jermainesmith4788 6 дней назад

@@richardholdener1727 each brand offer a tow cam. Some are on a single pattern duration

@AlanRoehrich9651 2 месяца назад

I suppose if I found a Whipple 8.1 Vortec kit (or2) I might build engines to go under them. I have a 3500 8.1 Allison and I'd like to have a Suburban 2500 8.1 4L80E. I might even want a Monroe Kodiak 8.1 Allison if I am ever able to return to racing.

@randysullivan5723 2 месяца назад

Coulda threw in the turbo stock 8.1 But it would make these look bad torque wise 😁 Torque and towing go hand in hand

@ryangulley2051 2 месяца назад

Ad a 14 - 71 blower and see how it does against a turbo.and that turbo wont compare to instant lowe power tourqe

@randysullivan5723 Месяц назад

Properly sized turbo will out low end torque any blower . Can be at higher boost down low than you can with a blower

@orangetruckman 2 месяца назад

Makes me want to get a cheapy turbo and get my truck boosted 🤤 just can’t afford the fuel injection yet 😑 I’m too lazy for carb tubing with the wide temperature changes where I’m at.

@adamdozier5757 2 месяца назад

I'm building a1955 Chevy gasser with a Little M Dart Block 434 SBC stroker 8 to 1 with 76cc dart heads. I want to drive it mostly on the street. What do you recommend for a cam and super charger?

@richardholdener1727 2 месяца назад

8:1? WHAT POWER LEVEL? 6/71, 8/71 OR CENTRIFUGAL?

@adamdozier5757 2 месяца назад

@@richardholdener1727 6/71 or 8/71

@adamdozier5757 2 месяца назад

@@richardholdener1727 Whatever E-85 can handle safely. I want some reliability. LOL

@markreibson7030 2 месяца назад

if durability was the same for all short block combinations,i would use the 454 and install a turbo to get varying boost.pump gas and 3.9pounds, sure!; 14 pounds on E85 ,yes! 18.5 pounds on 110 octane race gas ,you bet.

@richardholdener1727 2 месяца назад

I would rather run the 18 psi on E85

@jgadventures6409 2 месяца назад

Lets go

@american7169 2 месяца назад

8.1 comparison

@richardholdener1727 2 месяца назад

8.25:1 for the 496, 9.8:1 for the 454

@johnboticki9154 2 месяца назад

You mean the 8.1 496?

@american7169 2 месяца назад

The tube cut my comment, did have a "frick yeah" in there only the real f word

@steveadams5190 2 месяца назад

You never mentioned anything about the difference between the AFR 315 vs. the 335 heads. 🤷🏻‍♂️

@richardholdener1727 2 месяца назад

there was no difference-but that video is also up

@pmd7771969 Месяц назад

Strokers take in more fuel

@scotthultin7769 2 месяца назад

565 CI BBC 8 to 1 with 1471 would be great for me

@ryangulley2051 2 месяца назад

Ill take a 12 to 1 540 with a 14-71 oh i already have one

@ardennielsen3761 2 месяца назад

least with a turbo, the heat from the air pressure going up makes the turbine slow down because exhaust heat is a static expansion over displacement. hellcat heat knock unless it has 110 in it... AC bypass into the intercooler only goes so far anyways. Air Conditioning... snow plow Gas is fine... tho the heat of summer makes a Diesel engine look fine, as those operating ranges are different.

@bri-manhunter2654 2 месяца назад

He’s covered this in the past already.

@richardholdener1727 2 месяца назад

try to stay focused on one point and make

@pmd7771969 Месяц назад

He destroyed the mpg

@bobqzzi 2 месяца назад

760 lb/ft? Kinda weak sauce for towing. maybe if you had an aluminum trailer and light car. I guess you could have some nitrous to goose it over the Eisenhower.

@richardholdener1727 2 месяца назад

760 lb-ft would never even be used during towing