[Super_Nova]

Hey whats up guys! lets say my heads have a max lift of .540 and im using a cam that has .507 and .510 lift if I'm using 1.5 roller rockers am I going to have a problem?

 

[6NOVA4]

you shouldn't. Just have to be sure you have the right seat pressure on the springs and check for coil bind and check to see how close the retainer comes to top of the valve guide.

 

[franksL79]

lift

The lift you have takes into the rocker ratio, .340 cam lobe lift X 1.5 rocker = .510 at the valve. you should have the clearence checked between the retainer and valve seal , as well as the spring setting at the maximum lift for ciol bind.

 

[JBimmolate]

most chevy cams are measured using a 1.5 rocker arm as stated above.

Miles

 

[Super_Nova]

okay thanks guys! Ill soon be posting my engine build thread!

 

[The Big Al]

Hey whats up guys! lets say my heads have a max lift of .540 and im using a cam that has .507 and .510 lift if I'm using 1.5 roller rockers am I going to have a problem?

507=338 at the lobe
510=340 at the lobe

338 x 1.6= 540.8
340 x 1.6= 544

they do have 1.52 and 1.55 ratio rockers from differant company's.

Al