I am looking for a more powerful/faster engine to replace my 'slow' LB9 305 engine in my 1989 IROC 'vert. I am operating in a $3,000 budget. What engine will be the best canidates for me? I am considering the 383 engine, but does it past emmisions easily (the sniffer)? I also would like the engine to easily accept the current TPI setup that I'm using on my 305.

In short, is there a powerful engine, under $3,000, that easily runs with my TPI setup, installs easily, runs okay with my automatic transmission, and pass emmissions? I must become the king of the road around here in Marietta!!!

Thanks!


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1989 IROC-Z Convertible
305 TPI automatic
White with black top
Mods:
None to date... Working on it!!!
My webpage: http://mindspring.com/~humvee

 

Dang it... the topic is supposed to read: What engine can make over 300 HP and be emmisions legal?

Oops.

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1989 IROC-Z Convertible
305 TPI automatic
White with black top
Mods:
None to date... Working on it!!!
My webpage: http://mindspring.com/~humvee

 

The 350 was available in your year. Start there. An emissions compatible step-up cam, emissions legal aftermarket heads, ported TPI (check tech articles), emissions legal headers, emissions legal high-flow cat, and emissions legal high flow cat-back are all readily available, and would easily push you over 300 HP within that budget.

I'm not sure 300 HP would make you king of the road, though.

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82 Berlinetta, orig V-6 car. Rescued w/86 LG4/TH700R with all harnesses, sensors, ECM, etc. 2.73 open. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, exhaust, paint, etc.).
57 Bel Air, my 1st car. Currently 396 .030 over, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.