Head gasket thickness and cam selection
Guest
Posts: n/a
Head gasket thickness and cam selection
I just got my heads yesterday and here are the specs:
2.00/1.56 Manley race flow valves
Crower Springs, Chromemoly locks and retainers Good to .580 lift
Comp Cams screw in studs and guide plates
Flow as follows:
No Port attachments
.100 71/62
.200 133/112
.300 187/157
.400 219/185
.500 248/192
.550 258.5/193.5
I was talking with the guy I got them from and he suggested to run the Impala head gasket b/c its thickness is .0029 compared to the f-bod .0039 and would, of course, raise compression. Would there be any downside to going with the Impala head gaskets? Also, I'm using the LT4 Hotcam and he recommended the CC XE 230/236 cam. This is a daily driver and gas mileage isn't THAT big of an issue to me, but what would you guys do? Go with the Hotcam or the CC cam? My goal is to pretty much keep up with or edge out a Z06. I'll also be using GM 1.6 rr's. Thanks for any advice! :cheers:
'95 T/A M6, 52mmtb, LT4 km, TunerCat, !CATS, TPIS Headers, Flowmaster, Moroso CAI, Eibach Pro kit
2.00/1.56 Manley race flow valves
Crower Springs, Chromemoly locks and retainers Good to .580 lift
Comp Cams screw in studs and guide plates
Flow as follows:
No Port attachments
.100 71/62
.200 133/112
.300 187/157
.400 219/185
.500 248/192
.550 258.5/193.5
I was talking with the guy I got them from and he suggested to run the Impala head gasket b/c its thickness is .0029 compared to the f-bod .0039 and would, of course, raise compression. Would there be any downside to going with the Impala head gaskets? Also, I'm using the LT4 Hotcam and he recommended the CC XE 230/236 cam. This is a daily driver and gas mileage isn't THAT big of an issue to me, but what would you guys do? Go with the Hotcam or the CC cam? My goal is to pretty much keep up with or edge out a Z06. I'll also be using GM 1.6 rr's. Thanks for any advice! :cheers:
'95 T/A M6, 52mmtb, LT4 km, TunerCat, !CATS, TPIS Headers, Flowmaster, Moroso CAI, Eibach Pro kit
Race Director
Joined: Feb 2003
Posts: 11,133
Likes: 1
From: ~The DARKSIDE Group~
Re: Head gasket thickness and cam selection (NONO5.0)
I have been running the Impala SS "thin" gaskets for about a year. Compression and corresponding pressure are up, you can hear it when ever you let off the accelorator at speed or just reving it up. Can't say I noticed any appreciable HP or FT gains. I would not do it unless I was cracking the motor for another mod. :nonod:
