The best gasket fel-pro makes for head gaskets are the 1011-1 & 1011-2. Used both sets with great sucsess. If I remember correctly the -2 is the thinner gasket of the 2. Since your using a blower I would use the -1. I have also run the 9333PT1 and it is a better gasket than stock, but it is the mid point between stock and the 1011-1&-2 series head gaskets. Hope this helps you out in your search to keep from blowing head gaskets.

 

The cheaper ones are the better gasket. I had the 1011-2's, they wore through and pissed coolant out all over my oil filter. Fire rings were intact and sealer but they didn't seal the coolant passages. The big difference between the -1 and -2 are the fire rings. Essentially the same otherwise, the -2 are recommended for the aluminum heads.

I've used both the 8548-pt2 and the FRPP HD graphite gaskets with good success, you couldn't pay me to put another set of 1011-2's in anything I own. 1 year and they leaked externally, what's with that? I'm not the only one either.

Do a search in the windsor and power adder forum. The graphite gaskets seem to be the recommendation 90% of the time and are dirt cheap.

 

I've got 9333's on two cars and alum heads and no
problems (no power adders).

I know some people with blowers and 8548's, also with
no problems.

I've seen a lot of posts about the 1011's leaking, although
some people have good luck with them.

DropDTop - you shouldn't be blowing head gaskets like
that - i'd check for other problems that might be causing
them to blow, such as a bad sealing surface or detonation.

 

I used the 1011-2 gaskets and they sealed the combustion chamber but leaked coolant into the block. I switched to the 8548's and haven't had any more problems. Less than half the price is nice too.

 

Only took a month for mine to blow after s/c install but at 130,000 miles I knew it was possible. Does felpro make the 8548-pt2 TC89LX?

 

Another vote for the 8548-PT2 here. The 1011 did not hold up at all at but the 8548's are still going strong with 16.5 psi of boost. I have heard good things about the 9333 as well but stay away from the 1011.

BTW, If you have blown two sets of 8548's already you should be looking at your fuel system and tune. If you are blowing those you will blow anything you can put on. Look for the root cause and fix it and you will stop having gasket problems.

 

Same experiences here, the 1011 series seemed to push out easily (no audible detonation but still blown gaskets), the 8548 held up fine and thats all I use now on everything, being half the price is an added bonus. DropDTop, if you're blowing them you need to get your tuneup figured out, not switch to a different gasket....

 

I've always used 8548's because they're available locally at less than $30/pair. They've always worked well for me.

Billy

 

The cheaper ones are the better gasket. I had the 1011-2's, they wore through and pissed coolant out all over my oil filter. Fire rings were intact and sealer but they didn't seal the coolant passages. The big difference between the -1 and -2 are the fire rings. Essentially the same otherwise, the -2 are recommended for the aluminum heads.

I've used both the 8548-pt2 and the FRPP HD graphite gaskets with good success, you couldn't pay me to put another set of 1011-2's in anything I own. 1 year and they leaked externally, what's with that? I'm not the only one either.

Do a search in the windsor and power adder forum. The graphite gaskets seem to be the recommendation 90% of the time and are dirt cheap.

I agree with what he said. I said this before....Gaskets don't blow gaskets, poor tunes blow gaskets
head studs as oppossed to bolts help also

 

I've heard the same things about the Felpro 1011- series. Leak coolant.

BUT. I had them on for the last year with stock heads and 150 hp shot of NOS with no problems.

On Saturday I installed my new ported 6037's, so upon removing the stk heads I saw that the two 1011's looked like new in there. I even closely inspected them and the block and head surfaces for flaws. They looked good.
My 6037's are oringed and it was recommended by J&P to use the 8548PT2's. So thats what I installed!

My friend has a 408 and he uses 1011-1's on it. No leaks.

But I must say though that the 8548PT2's look stronger.

 

I found that if the tune is not extra safe, the 1011's didn't seem to last at all. I've used the 8548's with good luck, as well as the 9333's that I run now....I run 18#'s of boost, and only blew one 8548 gasket. That was due to fuel pump problems....

I agree with the posts above though. If you have blown 2 sets, you have a tuning problem to figure out, without a doubt. Whether it be fuel volume, too much timing, or not enough octane for the tune, or all of the above...something is amiss.

Good Luck to you, BOB