Max lift possible with stock springs?

fidstang

New Member

Jul 19, 2005

307

0

0

South Lansing

Apr 17, 2006

#1

• Apr 17, 2006

• #1

Does anyone know what the max lift on the 94 GT40 iron heads(not P) are? I have a TFS stage one cam and plan on using the stock 1.7 roller rockers on the heads but can't find any info on what the stock springs can handle.

 

legalize420

Active Member

May 21, 2005

1,541

1

37

South Florida

Apr 17, 2006

#2

• Apr 17, 2006

• #2

ive heard up to about .540. im at about .529. you will be at .544 on the exhaust with 1.7's so if i were you i would upgrade them or use 1.6's.

 

fidstang

New Member

Jul 19, 2005

307

0

0

South Lansing

Apr 17, 2006

#3

• Apr 17, 2006

• #3

Well that makes me feel a little better. I was told they are only good to .520 lift max. This way I can toss on my stamped stock 1.6's untill I get new springs. Thanks for the info!