Replacement heads, which way to go?
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Joined: Mar 2009
Posts: 260
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From: Texas
Car: 1987 Camaro Iroc Z28
Engine: 350 S/B
Transmission: 700 R4
Axle/Gears: 2.43 Gear Ratio
Replacement heads, which way to go?
So my ex girlfriend either blew a head gasket or cracked a head on my 305. The engine smokes like a freight train for about five minutes when I start my car, and I can't keep the engine from getting really hot. My question is, should I buy 305 heads to replace the ones I have, have mine rebuilt, or get something else? Would 350 heads bolt on? I've got a completely stock engine. What would be my best way to go?
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Joined: Sep 2009
Posts: 76
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From: Victoria, BC, Canada V8N1P5
Car: 85 SC and 87 IROC Both T-Tops
Engine: 305 V8 H Code and TPI F Code
Transmission: 700R AT/OD and 5 Spd.
Axle/Gears: 7.625
Re: Replacement heads, which way to go?
So my ex girlfriend either blew a head gasket or cracked a head on my 305. The engine smokes like a freight train for about five minutes when I start my car, and I can't keep the engine from getting really hot. My question is, should I buy 305 heads to replace the ones I have, have mine rebuilt, or get something else? Would 350 heads bolt on? I've got a completely stock engine. What would be my best way to go?
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Joined: Sep 2010
Posts: 64
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From: Maili HI
Car: 1989 RS,1991 Z28
Engine: TargetMaster 350, L98 350
Transmission: 700R4
Axle/Gears: 10 bolt posi 2.73s, and 3.23s
Re: Replacement heads, which way to go?
i would just buy a complete 350 personally.
but if you want to rebuild the 305 then get 305 heads, the 350 heads will
bog the motor down..
but if you want to rebuild the 305 then get 305 heads, the 350 heads will
bog the motor down..
Member
Joined: Apr 2008
Posts: 446
Likes: 3
From: Smiths Falls
Car: 1988 GTA Trans am 1 owner since new
Engine: 383 built
Transmission: 1995 camaro t56 6 speed
Axle/Gears: 3.24 posi 9 bolt
Re: Replacement heads, which way to go?
i just rebuild my 305 heads myself and it was crazy
the car did the puff smoke thing since it was 2 years old.
i took it apart... all of the exhaust valve stem seals were gone, and the intake ones were there but hard and brittle and falling apart.
so if your 305 smokes...rebuild it.
the exhaust valves were caked in oil carbon depoists and the car runs soooooo much better now that all the valves are clean and new seals...and all new gaskets of course.
i got a head gasket kit from a place on ebay called reliant gasket.....40$ us for the whole top end gaket kit...CHEAP!
the car did the puff smoke thing since it was 2 years old.
i took it apart... all of the exhaust valve stem seals were gone, and the intake ones were there but hard and brittle and falling apart.
so if your 305 smokes...rebuild it.
the exhaust valves were caked in oil carbon depoists and the car runs soooooo much better now that all the valves are clean and new seals...and all new gaskets of course.
i got a head gasket kit from a place on ebay called reliant gasket.....40$ us for the whole top end gaket kit...CHEAP!
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