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Old 04-11-2023, 09:34 PM
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GR8ONE68 GR8ONE68 is offline
Chief Ponti-yacker
 
Join Date: Jun 2001
Location: Newark, DE
Posts: 633
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Scarebird,

I love the build! I don't know if you recognize the name, I've been off the board for a long time. I got rid of my '68 gto 6 years ago. I wanted a '67 to retire with, but the way the market has erupted the last 5+ years, that idea is gone. I refuse to pay $50k for a decent, not great, condition car. The first new car I bought was an '83 Grand Prix. I've always liked that G Body style. I'm going to pick up an '81 to '87 Grand Prix and I'm going to do an LS swap on it. It's already a corporate motor, so to me, it's fair game. I've been doing a lot of research and this is what I have planned so far. I'm going to go with an LS3. I'm going to bore it .010" and stroke it with a 4.1" crank. That will give me 428 cubic inches, I'm nostalgic, what can I say. I'm going to put old '67 to '69 428 bags on it, see attached. I'm going to go with a mild cam upgrade, I don't want a lopey cam. The rest of the motor will be stock LS3. I should be in the 525 - 550 hp range. My goal right now is to go with a 6L80e trans. I think I'm leaning towards a Ford 8.8" rear. Converter and rear gear ratio will be determined after I finalize on the cam. I'm going with Year One 17" x 9" Rally II wheels with 275 x 40 x 17 tires in the back and 17" x 8" Rally II's with 225 x 50 x 17 tires up front. Aside from the 17" wheels, it should give me a stock appearing profile. That is what I'm after. I want a stock appearing, mild mannered, sleeper.

I may be hitting you up when I get into the project.
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469 (455 + .060") with the Edelbrock RAIV cam, Ported 6X-8 heads with 1.77" exhaust valves, 100 cc's, "0" decked block for 9.3:1 static CR, Eagle 1.65:1 roller rockers, Edelbrock RPM manifold and Edelbrock 750 carb., 1.75" x 3.0" Hedman Headers, 2.5" flowmaster exhaust system with "H" pipe and Dynamax super turbo mufflers. 200-4R with a Continental converter, 3.07:1 12 Bolt Saf-T-Trac
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