LS1 Heads # 806 on a 305?
04-07-2011, 02:58 PM
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Car: 91 RS 305 TBI 5 Spd
Engine: 5.0 TBI
Transmission: 5 Spd
Axle/Gears: 323
LS1 Heads # 806 on a 305?
Hello,
I am wondering if I can put LS1 Heads # 806 on my stock 305 TPI? If so what other parts or modifications do I need to do? I am looking to get some more horses out of the 305, and I can get teh heads for $200.
I am wondering if I can put LS1 Heads # 806 on my stock 305 TPI? If so what other parts or modifications do I need to do? I am looking to get some more horses out of the 305, and I can get teh heads for $200.
04-07-2011, 03:14 PM
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Car: 1992 RS
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Re: LS1 Heads # 806 on a 305?
I think LSx motors/heads have different coolant passages that are routed differently or something - I'm not sure though - now I'll get to read responses and know myself 
04-07-2011, 04:15 PM
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Re: LS1 Heads # 806 on a 305?
ok this has been brought up a few times....a factory LS head or a aftermarket LS head thats been molded to be a LS bolt in WILL NOT FIT A SBC!!! there is a company that i don't know the name of that is either working on or selling (idk if they have completed it yet) a head based on the design of the LS that makes it better but that will bolt on to a SBC
04-07-2011, 05:06 PM
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Car: 91 RS 305 TBI 5 Spd
Engine: 5.0 TBI
Transmission: 5 Spd
Axle/Gears: 323
Re: LS1 Heads # 806 on a 305?
Hey thanks for the info. I wasnt sure if I could purchase a diffrent intake that would allow me to fit the heads on or not. This site is great for a novice like myself.
04-07-2011, 05:12 PM
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Re: LS1 Heads # 806 on a 305?
It's not the intake that's the problem, they're completely different engines. You'd have as much luck putting a Ford 302 head on.
04-09-2011, 02:05 AM
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Car: 92 T/A 'vert
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Axle/Gears: LS1 3.42
Re: LS1 Heads # 806 on a 305?
ok this has been brought up a few times....a factory LS head or a aftermarket LS head thats been molded to be a LS bolt in WILL NOT FIT A SBC!!! there is a company that i don't know the name of that is either working on or selling (idk if they have completed it yet) a head based on the design of the LS that makes it better but that will bolt on to a SBC
http://www.worldcastings.com/product...ron-block.html
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