1.6 vs 1.7 ratio ....what will my lift be

bob1987f · #1 (**permalink**) 12-08-2007, 09:52 AM

hello, i curious about what my lift will be when i go through my 302 in my 87 150 w/a 5.0. ive got a summit brand cam 204/240 duration........448/472 lift.

im gunna get a set of edelbrock performer rpm alum heads, and now im thinking about what type rockers to get.

can anyone tell me what the lift will be if i get a set of 1.7 roller rockers?

the springs on the heads im getting can handle up to .575 lift

thanks

1EVILCREWCAB · #2 (**permalink**) 12-08-2007, 10:05 AM

its easy to figure out, divide your max lift that is listed by 1.6, multiply that number by 1.7 and that will give you the new figures

bob1987f · #3 (**permalink**) 12-08-2007, 10:41 AM

476/502 thanks!

bronco521 · #4 (**permalink**) 12-08-2007, 10:42 AM

take the lobe lift on your cam card and multiply by the rocker ratio.