Back to the drawing board. 455 plan didn't pan out so now I'm looking into a 454 plan. What motor mounts do I need and will I have to remove the heater/ac box off the fire wall? What trans will fit without modifieing the tunnel? Do they make headers to fit? So many quetions! Thanks for any help!
Pontiac 301 to 454 in 1979 Grand Prix?
- Thread starter racingcc
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455 Pontiac would've been a lot cooler, but yes, the 454 Chev will fit fine.
You need stock 305 mounts for both the frame and block and it's a direct bolt-in.
No need to remove the a/c box. It will clear fine with short valve covers.
You're in Minnesota like me, so I don't have to tell you removing it is a bad idea... :lol:
Pretty much any automatic trans will fit without modification to the tunnel.
Headers are offered by several companies, most are pretty pricey.
You need stock 305 mounts for both the frame and block and it's a direct bolt-in.
No need to remove the a/c box. It will clear fine with short valve covers.
You're in Minnesota like me, so I don't have to tell you removing it is a bad idea... :lol:
Pretty much any automatic trans will fit without modification to the tunnel.
Headers are offered by several companies, most are pretty pricey.
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