parts to go with a roller cam

[return to dirt]

was able to get a lazer cam i bought to a guy with a cam doctor to get the specs. now i need to know what parts to go with it. valve length, springs, retainers, etc. and what the power range of this cam is. would this cam work better with gas or alky? his printer didn't work so i wrote down the specs. hope i got the timing events correct but here they are.

106* center line
lobe lift, 0.368 in, 0.362 ex.
dur @ 0.50 266* in, 257* ex.
in, opens 43* btdc, closes, 79* abdc
ex, opens 75* bbdc, closes, 39* atdc
0.985 base circle

thanks,
olin

[Big E tech]

Olin,

Look for valves that are 4.800" long, and have a .400" tip length. You'll have to use the radius'd top Profile Tips. Esslinger has 2 different springs that will control that cam, 1 has a 1.830" installed height, and the other has a 1.750" installed height.

Our recommendations would be as follows:

E2567 1.890" Roller Intake valves
E2562 1.590" Roller Exhaust valves
E3205 10deg. Retainers
E2568-6 10 deg. Keepers
E3209 Roller valvesprings (1.830" installed height) <------cheaper price springs
or
E3206 Roller vlavesprings (1.750" installed height) <----- nicer spring but slightly more expensive

[return to dirt]

thanks for the help brian. i'll see what is going to happen at the 3 local tracks that run ministocks around here but i may be getting some stuff from you guys in the next few months. i have never had a problem with big E's stuff.

olin