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410” Cleveland build

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Post  dfree383 May 17th 2022, 5:19 pm

Going on the pump this weekend any on want to take a guess and HP and TQ


To summarize

1970 Cleveland 2 bolt block, .040 over 410”

1970 cc 4v heads

Scat 4” cast crank, 6” hbeams, SRP dished pistons 10.7:1

Crower hydraulic flat tappet 238 248 540 540 108

Performer RPM and 750 Holley DP

Hooker 1 3/4 super comps, msd billet distributor.

It’s going to be all painted ford blue with factory tin valve covers for the stealth look.


Head intake flow numbers

100 66

.200 133

.300 194

.400 249

.500 278

.600 311

Old school bench by hand calculations
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Post  wickettoby1 May 17th 2022, 9:18 pm

WAG, 465 hp and 450 torque

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Post  Mark Miller May 17th 2022, 10:08 pm

520 Hp 475 Torque

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Post  dfree383 May 21st 2022, 3:52 pm

540 HP @ 5500

500 TQ @ 3000
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Post  wickettoby1 May 21st 2022, 4:06 pm

After my guess I figured I’d be a little light, congrats on the nice combo 👍

The torque peak was at 3K with a 4V head?

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Post  Mark Miller May 21st 2022, 10:51 pm

dfree383 wrote:540 HP @ 5500

500 TQ @ 3000

Pretty good numbers on Horsepower at only 5500 rpm and Torque at only 3000 rpm and hey i was only off by 20 and 25!!

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Post  BBFTorino May 21st 2022, 11:05 pm

That's pretty stout, considering it's mostly made up of stock parts, and a mild cam!
And people always say that 4V head Clevelands don't make no torque!....well, but then again, it's nearly 60 cubes larger!

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Post  Mark O'Neal May 22nd 2022, 2:28 am

Beats me, but I usually do them with a 6.100 rod.


Last edited by Mark O'Neal on May 24th 2022, 2:26 am; edited 1 time in total

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Post  Mark Miller May 22nd 2022, 11:18 pm

Dave post a picture of this engine if you can!!

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Post  dfree383 May 23rd 2022, 3:12 pm

I don’t have a photo host any more, shoot me your email and I’ll send a picture
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Post  dfree383 May 23rd 2022, 3:14 pm

https://i.servimg.com/u/f49/14/67/78/30/abe9e210.jpg
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Post  Mark Miller May 24th 2022, 10:08 pm

dfree383 wrote:https://i.servimg.com/u/f49/14/67/78/30/abe9e210.jpg

Did you try dyno testing it without the hat on the carb?

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Post  dfree383 May 25th 2022, 10:01 am

No didn’t try it without the air cleaner base
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