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Thread: 73 Firebird
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06-09-2016 #7
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- Mar 2007
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Mainly from the fact that after agonizing over the Pontiac vs LS swap that most Pontiac guys are subject to from the hardcore Pontiac enthusiasts (which I have been for a long time), I have had such a positive experience with the LS7 that I can't see myself going back. Everything is better. The reliability, mileage, horsepower. I had a very high powered 455 in the GA. It put down 437 HP, and 457 TQ to the wheels on a conservative Mustang dyno, so I know what that kind of power feels like. The LS7 is better in every way, and it makes more power, but feels so much more driveable and less radical than the Pontiac was. Plus it doesn't leak from the dreaded rear main seal. I also lost 200 lbs. right over the nose of the car. Modern technology....it's worth the investment.
Originally Posted by Later-A-body
1973 Hurst Edition Pontiac Grand Am: 430 CI of ERL built LS7, Tremec Magnum T-56 6-speed, Global West / Speedtech Suspension, Custom rear coil-over suspension, QA1 double adjustable shocks, Wilwood 6/4 piston disc brakes, Modulare C1 19" concave wheels. Shooting for 625 HP and 20 MPG!
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