hydraulic, mechanical, or roller?
Thread Starter
Junior Member
Joined: Sep 2003
Posts: 53
Likes: 0
From: Evansville, IN
Car: 85 Z28
Engine: 305 LB9 TPI
Transmission: TH-700R4
hydraulic, mechanical, or roller?
I was wondering exactly what type of stock cam was put into the 85 camaro's with the 305 tpi? I am hoping that it is not the mechanical since you will have to measure the valve lash when adjusting the lash. I have someone that is going to help me adjust the lash i just need to know. That way if it is roller or hydraulic I can do it with the engine running.
Supreme Member
Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
theres 4 types.
all stock 3rdgen motors got hydraulic cams. in 87 they swapped from hydraulic flat tappet to hydraulic roller.
- hydraulic flat tappet.
- mechanical flat tappet. (aka solid flat tappet)
- hydraulic roller
- mechanical roller (aka solid roller)
all stock 3rdgen motors got hydraulic cams. in 87 they swapped from hydraulic flat tappet to hydraulic roller.
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