best head combo for a 305 with lt1
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
best head combo for a 305 with lt1
ayy guys wondering wat wouldbe a good head for a lt1 camin a 305 i dont know the math and on how to match emm
lift to intake
rotation to valves idk
love to learn how to butfigure i ask some good questions
lift to intake
rotation to valves idk
love to learn how to butfigure i ask some good questions
Joined: Apr 2005
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
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Joined: Feb 2005
Posts: 527
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From: Albany NY
Car: 84 Trans AM (sold), 87 IROC, 09 C6
Engine: Lt1 in IROC
Transmission: 5 speeds
Axle/Gears: Moser 12 bolt tru tracker 3.42
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Thread Starter
Member
iTrader: (10)
Joined: Dec 2010
Posts: 335
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Re: best head combo for a 305 with lt1
tbi to tpi
lt1 cam going into block
what would be a good head combo for this setup
hope that clears it up. . . .
lt1 cam going into block
what would be a good head combo for this setup
hope that clears it up. . . .
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: best head combo for a 305 with lt1
I suspect if you are going for better heads then you could use more cam than a LT1 cam.
LT1 cam is 305 is a cheapy mod on stock 305 engine
https://www.thirdgen.org/forums/post...115-post6.html
Last edited by vetteoz; Oct 7, 2011 at 07:15 AM.
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Joined: Jul 2006
Posts: 306
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From: Las Vegas
Car: 1985 El Camino Choo Choo
Engine: L31 Crate 350 w/ TPI
Transmission: GN 200-4r
Axle/Gears: GN 8.5 3.73
Re: best head combo for a 305 with lt1
I put an LT1 cam in an L69. Works pretty good with the 081 heads. They are hard to beat if you have to maintain emissions. Vortec heads are good, but the intake is expensive.
Joined: Apr 2004
Posts: 3,001
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From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: best head combo for a 305 with lt1
Truthfully I'd go with ZZ4 heads and cam for a 305........you'll like it trust me,lol.
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Re: best head combo for a 305 with lt1
i read ure car domain if i get my tbi heads ported do the flow better and would they run well on a tpi how much gain?
good read by the way and all v6 have a 3.42 gear in it??? im going to the yard
good read by the way and all v6 have a 3.42 gear in it??? im going to the yard
Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: best head combo for a 305 with lt1
Honestly if you're going to pull off the heads you might as well put better ones on. The swirl port heads aren't "bad" when ported if you want a motor that doesn't pull past 4500-5000 rpm (with tpi you're kinda stuck there as well stock) They make great torque for the street but you'll run out of steam pretty quick. The v6 cars do come with 3.42's but in an open diff. Get an Eaton posi. it's good money spent IMHO.
Thread Starter
Member
iTrader: (10)
Joined: Dec 2010
Posts: 335
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Re: best head combo for a 305 with lt1
i will keep this in mind its more of a budget build for me and i here those tbi heads are terrible stock im bout to go to the junkyard hehe
those zz4 heads need work from wat i read and where could i get em for cheap?
also if u dont mind look at my forum where i compared my cams with info help plz
those zz4 heads need work from wat i read and where could i get em for cheap?
also if u dont mind look at my forum where i compared my cams with info help plz
Thread Starter
Member
iTrader: (10)
Joined: Dec 2010
Posts: 335
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: best head combo for a 305 with lt1
i will keep this in mind its more of a budget build for me and i here those tbi heads are terrible stock im bout to go to the junkyard hehe
those zz4 heads need work from wat i read and where could i get em for cheap?
also if u dont mind look at my forum where i compared my cams with info help plz
those zz4 heads need work from wat i read and where could i get em for cheap?
also if u dont mind look at my forum where i compared my cams with info help plz
Thread Starter
Member
iTrader: (10)
Joined: Dec 2010
Posts: 335
Likes: 0
From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Re: best head combo for a 305 with lt1
how much money would this take??? in case i go this route and wat wus the gains???
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