sbc drag racing engine...
 

my question is this... i have the chance to build a race only engine for my 3000 lb... race ready vega...should i go with the... 383.... or 377... or 406... i have a good 400... 509 2 bolt block... it needs to turn 7200 at the lights.... any help would be great... thanks in advance.........caveman... :?

Go with the 406" i've got a 377" in 3250 lbs and it has no torque for that much weight, even on alcohol. i had a 406 on gas in the car and ran better and quicker 60' times. But i broke it because i didn't have good rod bolts in the pink rods (boke a rod bolt)
The 377' in my car is a 2 bolt, and the 406" was a 4 bolt blk. Luckly it didn't kill the 4 bolt block and i still have it
JMO

Zip.

X2

hey guys... thanks for the quick responce... i was leaning towards the 406... but do you think it san stand 7200 rpm... i'm running a 32 inch tall tire turbo 350.. bo brake and 5;13 gears ... thanks caveman....... :o

There's no replacement for displacement, so a SBC with 400+ CIs is the way to go! Additionally, I believe a broad power-band in a car like your's (typically with a Power-Glide) is also very important. So, a 4" stroke crank will help with that.

FYI, my SBC 427 stroker with 4" crank will easly turn 7500, but I typically shift it at 7200 bracket racing.

You know it!

406

ok... what compression would you run?? dome or flat top?on 383 or 406? thanks in advance.... caveman :? :? :?

id run a dome with around 13-14:1 if it just gonna be a race car id run some afr heads as well