chitown21y

iTrader: (6)

Kooks are in the mail and I want to order the best header gaskets I can get. What have you guys used that seals good and will clear the 1 7/8?

Thanks

Dave

RADEoN

iTrader: (12)

i just got the felpros from advance.

Racer001

iTrader: (15)

just stock GM aluminum gaskets. Like $20 and work wonderful

raven154

iTrader: (14)

Stock here too

punishmentcycle

iTrader: (6)

Stock gm steel... Do not leak.

GulfM3

iTrader: (14)

Another vote for Stock GM gaskets.

chitown21y

iTrader: (6)

OK OK I am sold! Thanks guys

itsslow98

iTrader: (18)

I went through two sets of GM gaskets with my kooks and they NEVER sealed. Got the felpro from advnaced and never looked back. They were thicker so any imperfection in the flange they were able to seal.

shadyLS6

did anyone say stock...


I actually just reused mine.. cleaned them up with some scotch brite and degreaser.. no leaks no problems

scatillac

iTrader: (12)

+1 on the GM gaskets (with some qualification as follows)!

The GM pickup gaskets have round ports that are large enough for a 1 7/8" pipe and will seal better than the oval port gasket type found on other models.

If you have the D-port 1 7/8" Kooks, use the stock LS7 Y-car gaskets.

Instead of the Kooks-supplied bolts, use new GM bolts, the type with the green threadlock on the threads, and follow the factory torque sequence and they won't loosen.

Mine had no leaks when installed or since, and they've been on the car since the summer of 2006.

04Vguy

iTrader: (3)

+1 on stock but ive also used several of the ones that kooks sends with them on customer cars and have never had a problem

CancerJCC

iTrader: (4)

Me too and I've reused them 3 or so times now with no leaks in 30k ish miles.

RADEoN

iTrader: (12)

yep they're badass gaskets, they're almost like a metal with a slight foam in the middle... very good deal.

FelPro gasket at Advance and they're only 11 bucks.

FWIW, you're best to do plugs and wires while the exhaust manifolds are off. You're likely gonna break more than one plug taking them off.

throw plugs and wires in, type in VISA as your coupon code for 50 off of 150, or BIG30 for 30 off of 75, or P20 for 20 percent off your entire order.

GulfM3

iTrader: (14)

It's a good practice to always take the plugs out before pulling the manifolds/headers. Breaking a plug isnt a big deal, but if you only crack the insulator you will wind up with random a misfire that's hell to track down.

But I agree, if the plugs are old its a good time to replace em.

RADEoN

iTrader: (12)

It's a huge bitch to get those plugs out with the exhaust manifolds on.

chitown21y

iTrader: (6)

Putting some tr55ix's in when I install the headers and just bought some msd wires.