World Products S/R Torquer 305????
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Joined: Mar 2001
Posts: 271
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From: Oregon, WI US
World Products S/R Torquer 305????
I have a 89 305. I am converting it over to TPI and I want these heads my question is, can I just order the heads for a 86' since that is the year of my TPI unit? I THINK that the heads should bolt on the same as 78 and newer. Let me know I need help ASAP!!!!!
Senior Member
Joined: Aug 1999
Posts: 611
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From: Glendale, AZ
Yes, if you use an 86 TPI set up, you will need the heads for 86 and older. 87 is when they changed the heads to centerline valve covers, and changed the intake bolt patter.
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Rob
'86 TA 305 TPI
Gutted MAF, Ported Plenum
TB Bypass, Home made Cold Air Intake,
Edelbrock T.E.S.
------------------
Rob
'86 TA 305 TPI
Gutted MAF, Ported Plenum
TB Bypass, Home made Cold Air Intake,
Edelbrock T.E.S.
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
R.O.B. is correct, you order the head type based on your intake type.
You can use your center-bolt valve covers on these heads, but you will have to grind off the perimeter bolt bosses on the heads to get them to fit properly. I suppose you could modify your valve covers, but grinding off the bosses is what World recommends. Something to consider if you are buying them assembled. I got mine unassembled and plan on porting them anyway, so it isn't a problem for me.
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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 your center-bolt valve covers on these heads, but you will have to grind off the perimeter bolt bosses on the heads to get them to fit properly. I suppose you could modify your valve covers, but grinding off the bosses is what World recommends. Something to consider if you are buying them assembled. I got mine unassembled and plan on porting them anyway, so it isn't a problem for me.
------------------
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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