I own an 84 TA 4bbl HO. I am planning on buying a reconditioned 350 from a 91/92 TA to replace the 305. I am planning on keeping all the 84's electronics... computer, carb, emissions equipment, ect. What I was wondering is... will this work, EFI head wise and the like, (I know I have to buy a carb intake for the 350), and what parts can I keep from the 305 (such as starter, intake, flywheel ect) to save myself some $$$? Thanks for any replies.

 

All of it, except the flex plate/flywheel. Your '84 is a two-piece rear main seal style crank, and the '91/92 is one-piece.

The intake center two bolts on each side will be a different angle on the heads vs. the intake, but you can elongate those holes in the intake to make it work. Or, get a Performer or Action + for '87-later style.

You might want to talk to Jet about calibrating the 4bbl and ECM to the 350.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. 2-1/2" cat-back, ZZ3 intake, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 CC system w/'87 LB9 block, ZZ3 cam, ported World 305 heads, Hooker 2055 headers, 3" Catco cat & 3" catback, restalled TC, Spohn SFCs).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, 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).

 

who's Jet, and how can I reach him? Also, about how much $$ might this swap run? I know it's about $1,350 for the 350, I'm more or less wondering about the cost of having it put in. If the '87 intake will work, I think I'll save myself the aggrivation and just buy that. I'm going to have a mechanic do this, so the technicals will be left to them. Thanks for any replies.

 

Also, the tranny is an automatic, so: I'll have to get the '91/'92's flywheel, but what about toruqe converter?

 

Jet Performance. Don't have their info with me here, but they advertise in the usual magazines.

You said "flywheel", so I assumed you had a manual tranny. What you actually need is a 153 tooth flexplate for a one-piece rear main seal. Your torque converter will bolt up to the new flexplate.

I've never priced an engine replacement, because that's work I do myself. I'd imagine about $500-800 labor, plus small parts like intake gaskets, hoses, belts, and fluids.

 

Final question: Where can I get the Performer or Action + intake for the '87-later style? Would they be in the usual magazines under Edlebrock or Holley? I assume they would all be mail order. Thanks again for your time.