Please give me your opinions/suggestions
08-05-2007, 10:45 PM
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Anyone running 862 heads? Would like to hear how you like them and what cam you went with?
Here's my current pkg, stock '00 LS1, (15,000 mi) 6-speed, LGPro LT w/high flow cats, X-pipe, B & B PRT's, Vortex intake.
Due to stumbling across a set of CNC ported 862 casting heads at a steal, my next move is the heads and a cam.
That's where I'd like to hear opinions and advice:
1. Opinion of the 862's I bought and their stated specs
CNC'd intake, exhaust, chamber
Stainless 2.02/1.60 swirl polished valves
650 lift double roller springs/Ti Retainers
62cc CNC'd Combustion Chambers
flow #'s:
Lift Intake Exhaust
.200 136 116
.300 200 155
.400 250 190
.500 278 210
.550 295 216
.600 310 220
2. What cam you'd select given those are the heads used. I drive the car
only occasionally for daily transport, but streetability is important although
I do want to go a little beyond mild. Matter of fact, what mild cam
would you use and then what slightly stronger cam would be your suggestion?
3. Roller rockers or not, why? what ratio?
4. Any PTV cleareance issues? 1.7's? 1.8's?
5. Been a long weekend, put LT's on my son's '02 camaro yesterday,
but I assume CM pushrods, ported oil pump, double roller timing set, as for anything else you might consider
that I haven't asked or assumed, please feel free to "educate me", thanks.
I've heard good things about this site and look forward to your advice
Here's my current pkg, stock '00 LS1, (15,000 mi) 6-speed, LGPro LT w/high flow cats, X-pipe, B & B PRT's, Vortex intake.
Due to stumbling across a set of CNC ported 862 casting heads at a steal, my next move is the heads and a cam.
That's where I'd like to hear opinions and advice:
1. Opinion of the 862's I bought and their stated specs
CNC'd intake, exhaust, chamber
Stainless 2.02/1.60 swirl polished valves
650 lift double roller springs/Ti Retainers
62cc CNC'd Combustion Chambers
flow #'s:
Lift Intake Exhaust
.200 136 116
.300 200 155
.400 250 190
.500 278 210
.550 295 216
.600 310 220
2. What cam you'd select given those are the heads used. I drive the car
only occasionally for daily transport, but streetability is important although
I do want to go a little beyond mild. Matter of fact, what mild cam
would you use and then what slightly stronger cam would be your suggestion?
3. Roller rockers or not, why? what ratio?
4. Any PTV cleareance issues? 1.7's? 1.8's?
5. Been a long weekend, put LT's on my son's '02 camaro yesterday,
but I assume CM pushrods, ported oil pump, double roller timing set, as for anything else you might consider
that I haven't asked or assumed, please feel free to "educate me", thanks.
I've heard good things about this site and look forward to your advice
Last edited by KidShalene; 08-06-2007 at 12:10 AM.
