Title says it all. I am gettin ready for a LT1 Buildup and I want to crunch some numbers on Desktop Dyno.

Also. I notice the compression ratio is not the same on a LT1 in a 97 camaro vs 97 firebird TA. Is that a type on KBB or is one 10.1 and the other 10.0?.. if so why? they have the same hp and tq arccording to KBB?


Thanks

 

1.94" / 1.5" valves
my combustion chambers were 53.8cc and 53.4cc (different for each side)

stock compression is supposed to be 10.4:1. it varies from car to car as tolerances don't always line up exactly but most LT1s will be at that if not very close to it.

 

why are they diffrent from side to side?
thanks for the info

 

Assembly line mass-production! Which is typical for a production engine.

WD

 

+1

 

ok. Very good.

I have a few more questions on the stock stuff of a LT1

Stock Cam Lift, Duration, overlap, and lobe center?

Type of lifter (hyd. roller I would think?)

also, it wants to know about the intake.. CFM. i dont know how to measure thats when there is no carb.

thanks

 

LT1/LT4 head flow info.... old, but still valid:

http://www.malcams.com/legacy/misc/headflow.htm

General 4th Gen info - again, old but still useful:

http://www.ws6.com/faq/