sbc drag racing engine...
#1
Member
JUNIOR BUILDER
Thread Starter
Join Date: Oct 2008
Posts: 78
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... :?
#2
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
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.
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.
#4
Member
JUNIOR BUILDER
Thread Starter
Join Date: Oct 2008
Posts: 78
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.......
#5
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.
FYI, my SBC 427 stroker with 4" crank will easly turn 7500, but I typically shift it at 7200 bracket racing.
#6
Originally Posted by TheEngineer
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 (but 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.
FYI, my SBC 427 stroker with 4" crank will easly turn 7500, but I typically shift it at 7200 bracket racing.