1badasZ

im not sure if he is milling them or not but im having a set of stock lt1 heads ported and he is gonna put bigger valves in them. 2.00/1.60's i think. will that be to big for the stock bottom end with a cam and 1.6 rr? and 2. what are the specs and part number on the gm 847 cam i havent heard of that one yet. i was considering the cc 306 but im open to whatever is best. i have crane springs part #10308-1..will these be good enough to support either of these cams? last of all if any of you have sound clips send away


grease i tried to email you but it keeps coming back!!

Z95m6

people put heads and CC306's on stock bottom ends all the time on here. The only thing is you will probably rev pretty high and with higher rev's comes more chance for failure to happen.

LPE Z convt

GM 847 cam is 234/242@.050 duration and lift is 575/595 with a 1.6 rr all with stock bottom end hearmods in sig any questions email me ... I would get your flow #s from your heads and custom taylor a cam to how they flow IMO.... good luck

1badasZ

where do i get a 847 cam from? ive heard of the hot cam but have never heard of this one. also does anyone know if crane spring # 10308-1 will support either of these

HM Murdock

GM Performance parts should sell the 847, and yes, Crane springs will work, they support .600 lift at 7K rpms...

envme23

847 part #12370847

envme23

here you go 1badasZ www.gmpartsdirect.com is where you will find the cam

96ta(nick)

if i were to do it over again i would have gone gm847 or a custom grind(which i probably will soon) My setup is in my sig...