which head gasket for twin turbo?
07-17-2005, 11:58 AM
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Car: 89 iroc-z 5.7tpi 350,
Engine: 5.7tpi 350,
Transmission: T-56 fully built WOOHOO
which head gasket for twin turbo?
what head gasket should i go with im going to be putting twin turbo's on my 89 iroc l98, its gonna have a few mods nothing major, headers, rocker arms, port work and super ram
what is going to be a good head gasket that i dont have to change ever 5K miles but will hold up to the pressures i will also be having arp head studs
what is going to be a good head gasket that i dont have to change ever 5K miles but will hold up to the pressures i will also be having arp head studs
07-17-2005, 01:37 PM
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Use the Felpro MLS gaskets. They are more than the standard felpro, but worth it in the long run. Cometics are another good choice, but cost big bucks compared to the rest.
07-17-2005, 03:58 PM
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Car: 89 Camaro IROC-Z
Engine: Intercooled Twin Turbo LQ4
Transmission: Tremec TKO 600
Stockers doing great for me with 6psi of boost from TT's, nearly 9k miles on the system now. I have also run a few test runs at 10psi, I plan to go to the track with 10psi once the weather cools down here.
If you don't detonate, I believe the stock headgaskets should hold up well.
If you don't detonate, I believe the stock headgaskets should hold up well.
07-18-2005, 08:05 PM
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Car: 92 Formula 350
Engine: L98 with a T-76
Transmission: ArtCarr 700-R4
Axle/Gears: Bone stock 10bolt and 3.23's
I have copper head gaskets and i have had not one problem. But I'm pretty sure you have to o-ring the heads or the block. I o-ringed the block while it was out.
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07-18-2005, 08:38 PM
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Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27
I had my felpro head gasket start leaking fluid while still NA but I'm adding a turbo now so I am changing them out with cometic. I hear nothing but great things about cometic.
http://www.cometic.com/
They are real popular in the r i c e r boost crowd also.
http://www.cometic.com/
They are real popular in the r i c e r boost crowd also.
07-18-2005, 08:40 PM
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Car: '82 Trans Am
Engine: Blown 540 BBC
Transmission: TH475
Axle/Gears: Dana 60, 4.10 w/spool
I also recommend an MLS type gasket, such as Cometics. While they are expensive, they are also reuseable. About time Fel-pro came out with a version.
07-18-2005, 10:29 PM
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Car: 91 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi w/Disc
...and on a side note: intercool those turbos. You'll reduce the likelihood of blowing the gasket -- not to mention overall better operation. 
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