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Old 02-26-2016, 01:28 AM   #13
71chevswb
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Join Date: Oct 2011
Location: NorthWest
Posts: 129
Re: 454 motor build Horsepower/torque Estimation

the motor is built/completely and in the truck. Had a professional builder decide what parts to use. I do not second guess his knowledge or decisions. Block was bored 0.030 over. All new internal parts used. Not mismatched parts, the heads were just what was laying around and got for free. Built for 9.4:1 compression to run on pump gas. Has a mother thumpr cam. They make a thumpr cam, a mother thumpr cam and a big mother thumpr. pretty sure I have the middle one, mother thumpr.

The motor wasnt built to make max horsepower for the amount spent. Motor was built to sound good, choppy idle and cruise around town. Tunnel ram is all for looks, I wasnt trying to add horsepower there. Not a track runner. I was simply curious what numbers it would produce if on a dyno.

And as far as carbs, i did tons of research and made some phone calls. 2 450's was what this motor needed. 600+ cfm is way too much IMO.

The truck rips, plenty of power. Enough for me. Hard to keep it straight.

Last edited by 71chevswb; 02-26-2016 at 01:36 AM.
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