W-body 3800 zzp header install

Рет қаралды 4,894

5 жыл бұрын

This is a guide meant so show what you're in for. I'm not showing every nut/bolt because I assume you already have mechanical knowledge. I got this done in a weekend. This is my own personal car. Done on my personal time so i took my time and enjoyed myself. In a professional environment it should take 5-8 hours depending on where your car came from (you are dealing with exhaust, northern cars get crusty)
the exhaust note did change slightly, exhaust noise did go up just a hair. I like it the new sound.
this was done on a 2003 Pontiac Grand Prix GTP. This will also cover almost all 2nd & 3rd gen w-body cars with the same 3800 motor.

Пікірлер: 21

@t-pitz8866 2 жыл бұрын

Same color as my GTP, I love how clean the engine bay looks

@carnage50x 2 жыл бұрын

Thank you.

@SalemDoyle 4 жыл бұрын

This is a great vid. very interesting to see.

@g8ingaround272 4 жыл бұрын

Just got my bonnie ssei ima follow this route. Great job at explaining and pointing out specifics

@johnwagner4559 4 жыл бұрын

Man that's a clean beautiful car! More trouble than it's worth. These cars are perfect just the way they are. Of course, I'm 54 and most that do miss to they're car are youth's.

@carnage50x 2 жыл бұрын

Not sure how I missed this but thank you. I like things clean and factory looking.

@Invasivesocal 4 жыл бұрын

Thanks for the info! I was interested in the clearance and mods that had to be made to fit. Cause I saw speed daddy they almost fit the same and I figured since these were more expensive they would be better fitment but seems like it is almost the same. Thank you!

@carnage50x 4 жыл бұрын

np. These are probably the best headers you can get as far as fit/finish/ease of install. (Other than the dipstick tube problem) but, they're so expensive the dipstick tube problem shouldn't be a problem ya know? The speed daddy ones are a lot more difficult to install and requires a lot of modifying to get to fit. And have a weird dip at the bottom. The zzp dropped right in and cleared everything but the AT tube and 1/8" away from the fire wall (I had short dog bones so that explains the firewall clearance). It is miles better fit, but still not perfect. And for the cost, it should be perfect. Look up salemdoyle. He's got an in-depth video on the SD headers.

@Invasivesocal 4 жыл бұрын

@@carnage50x oh forsure im going to look it up. I just ordered the stage 2 package from zzp. I can't wait till it arrives. Im definitely ready for some boost smalled pulley. I think after that i want a full 3" exhaust. Im like no more mod but is hard to stop. Ultimately would be nice headers, loweres some nice wheels and tyats it lol i know i would want more haha

@carnage50x 4 жыл бұрын

@@Invasivesocalfor exhaust, the best bang for your buck and ease of install (exhaust wise) would be zzp front p-log and zzp 3" downpipe (catted or not doesn't matter, the highflow cat they use has next to no back pressure). The stock cat back can actually cope pretty well when making more power. The most restrictive sections in the factory exhaust is the downpipe section. Then after that it's the front manifold. Headers aren't really needed until 300whp mark (mileage will verify, some vehicles may be different). There's plenty of people down in the high 12's without headers. Good luck with yours 👍. Once you've been bitten with the 3800 bug it's hard to quite.

@Invasivesocal 4 жыл бұрын

@@carnage50x thanks great info. Definitely ready for this build cant wait to see what the downpipe does to the car

@prestonboling1427 2 жыл бұрын

so i already took the motor down to the block is it too late to jack it up? i'd rather not try to slither my way underneath

@prestonboling1427 2 жыл бұрын

down to the block besides the rear manifold and head haha

@cr3.media2 4 жыл бұрын

What mods did you have done before? I have zzp 2.5 inch cat back exhaust, along with cold air intake should I drop a pulley?

@carnage50x 4 жыл бұрын

As for exhaust, I had zzp front p-log, 2.5in dp w/cat, factory cat-back. For the motor at the time of the video, I had 1.9 ratio rockers, #90 valve springs, 3.3 or 3.4 pulley I can't remember, autolite 104 plugs, fender well intake, short stack intercooler. I might be missing things. For your pulley size I'd scan for kr and watch your boost level. You want to be in the 8-9 psi area with no KR. As you increase flow (mow flow mow powa) boost will drop. Dropping pulley size to bring it back to 8-9psi. Being that you're pretty much stock. 3.6 should be safe but scan for kr

@thomasdean3497 4 жыл бұрын

I just put the same 18 gxp acola wheels on my 2000 Gtp and the back wheels only clear the spring by 1/8+ Did you do anything for clearance?

@carnage50x 4 жыл бұрын

No clearance issues. I even have a full set of 4 fronts all around. There is a problem with w-body cars having excessive camber in the rear. Check for warn suspension components.