92 TA 305 TPI swap questions
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Joined: Jul 2001
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From: Houston, TX
92 TA 305 TPI swap questions
I have a 92 TA with a 305 TPI...Short block is toast...can I swap the block with a 80-84 305 (casting # 14010201) that I already have and use the heads from the 92? The 92 should have a roller setup and the 80-84 has a hyd. cam and lifters. If that won't work, can I use the 80-84 block and heads (casting #14014416) with the 92 TPI? I'm trying to get the 92 running to be my daily driver, with parts that I have on-hand, while I build a nice hi-po 383 or something for it.
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There is no substitution for cubic inches!
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There is no substitution for cubic inches!
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Welcome to the board.
You can use the earlier short block with your heads. In fact, that is the best way to make it work, since your TPI intake won't bolt to the earlier heads without some bolt hole modifications.
Your '92 actually has hydraulic lifters, of the roller follower type. "Roller" and "hydraulic" aren't mutually exclusive. If possible, it is the best bet for your hi-po engine if you can.
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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. Cat-back from '91 GTA, ZZ3 intake, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam, ported World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).
You can use the earlier short block with your heads. In fact, that is the best way to make it work, since your TPI intake won't bolt to the earlier heads without some bolt hole modifications.
Your '92 actually has hydraulic lifters, of the roller follower type. "Roller" and "hydraulic" aren't mutually exclusive. If possible, it is the best bet for your hi-po engine if you can.
------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. Cat-back from '91 GTA, ZZ3 intake, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam, ported World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).
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