Hey guys, on saturday I was blessed enough to have the time to go to my local U-Pull junkyard and I found about 10 3rd Gen F-Bodys. However 7 of them were 2.8Ls 2 had nothing in them....but one...was a Formula Firebird. My question is, what did the 1990 Pontiac Formula come with? Was it the 305 or the 350? HO? If anyone could help me it would be appreciated. I may be going down with my cherry picker.

 

They offered both a 5.0 and 5.7 in the 1990 Formula: http://www.thirdgen.org/1990-pontiac-firebird

 

It came with 28 spline axles. If it has rear disk brakes, and they're still on the car, they'll be the larger aluminum PBR caliper disk brakes.

 

probably better suspension as well..if nothing else thicker sway bars.

 

Very quick cars. Ask Zepher.. he actually held off an ls1 SS for quite a bit w/ his 305 Formula

 

FYI, every vehicle sold in the US in the last 30+ years has an emissions/tune-up sticker under the hood that states the displacement of the factory engine. it wont specify between different versions of the same cid, though. but if you read up on the 3rd gen RPO codes, and find that sticker, you can get all the information you need.

 

A dead giveaway may be the decals on the side of the car as well. The decals that read "Formula" had the 305s and the "Formula 350" had the 350 obviously.

 

I thought 350's twisted the frame, or was that just t-top models?
ive alwase frame-kitted my 3rd gens b4 i droped a 350 in for this reason, was i told wrong?


Don

 

a 350 in itself wont twist the frame Up until the 450fwhp+ range you should be ok.

 

It may be just the t-tops cars, they had a little less structural integrity versus the hardtops. The guy I bought my third gen from had two of his own, two t-tops cars with the 305TPI motors and no motor modifications. The rooftops on both of his cars were pretty severly cracked where my hardtop with 100K on the odometer had none.

 

makes sence, my 3rd gen w. t-tops wpold crack winshields left and right when i was hard on her threw a frame kit in and it stoped


Don

 

Actually it happens to hardtop Camaro's just as much.. well, not AS much.. but it still happens due to being a Unibody. Get some sfc's and fear-not