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And a lot of us have 78-80 Grand Prix, which probably have some of the simplest possible panel lines of all of the G's, which would make them super easy to reproduce. Just sayin'. :wink: 1/4 patch panels would be great.

I've run both. This is the better choice.

Keep in mind that there is a big difference in the onset of torque between a 3.8 turbo and a 455. One produces a gradual buildup, the other a sudden shockwave. Personally I think the 4L80E (with an adapter plate) with its higher torque rating is a much better choice for a Pontiac engine.

I suspect that they are stock with the inner fenders removed. Cool video though. I'd be very happy to come across something like that in a yard.

It occurred to me that a late 70's Caddy might have some parts that I could use.

Re: Grand Prix headlight modification - opions wanted I have a few extras I can experiment with if I decided to do this. I wouldn't cut up my original set. I might also look around to see if anything like this was ever offered on another car.

I've been a Grand Prix owner for a long time, and something about the headlight configuration has never looked quite right to me. I had some fun with photoshop today and this is what I came up with. The modified lights look a bit cleaner to me but I'm not 100% sure. Which do you guys like...

I have that pump on my 400. Works great, no issues.

I saw some 4 door Malibus in there. This one sold for $700. https://www.proxibid.com/asp/LotDetail.asp?ahid=1530&aid=68561&lid=17400616&title=1978-Chevrolet-Malibu-4dr-Sedan But yeah, for the most part people were going nuts with their bids.

My clock turned into a tach a long time ago. 8)

I have American Collectors. They insure modified cars and they have different tiers, including one that allows normal use.

Re: whom wants an inner patch panel 4 their monte, cutlass d Interesting... :)

There are quite a few sets of the rear exit manifolds on ebay.

This thread really delivers! :D Thank you Ramey and Ryan for sharing. This is definitely an area I hope to improve on my car at some point in the future.

You mean these? http://www.ebay.com/itm/1978-79-80-MONTE-CARLO-GRAND-PRIX-INSIDE-SAIL-PANEL-/400210264470?pt=Vintage_Car_Truck_Parts_Accessories&fits=Model%3AGrand+Prix&hash=item5d2e640196&vxp=mtr

There was this one in HPP a while back. Nice looking car. Not sure if the owner is a member here or not. http://www.highperformancepontiac.com/features/hppp_0910_1979_pontiac_grand_prix/index.html

I installed my 400 in place of the factory 301 many years ago. The swap is well worth the time and effort, and the aftermarket support for Pontiac engines is huge despite their age. Keep us updated on your progress :mrgreen:

I used this and it works great. http://www.summitracing.com/parts/SUM-890015/

The T5 will not live long behind a healthy small block unless you drive like a little old lady. It was only offered behind 305 V8's because it would not stand up to the torque of a stock 235-245 horsepower F-body 350. The T56 is a much better transmission with two overdrive speeds and excellent...

Re: Anybody using elctric water pump and fuel pump on their You need to look at the pump flow rates. What does the stock pump flow increase to at faster engine speeds? When I was researching it, the high flow belt driven pumps could only match the flow of the electric pumps at high rpm. The...