I have finally join the blown head gasket club

[SloGN]

Seriously, Did you find anymore damage? I hope it did not groove the block or break a piston.
What about the head bolts? Were they stock or?? Do you think the head might have lifted or do you think it just leaned out?


P.S. Everybody told you those e-bay headers were going to mess up your car. J/K

damn i should have known it was the e-bay headers the whole time.

I'm gonna roll the motor over on the engine stand and pull the oil pan and check the rod/main bearings to make sure everything is good to go on reinstall of the engine.

so you have any suggestion on cams?

 

[corsair231]

Most people will say go roller. You know, do it once and forget it. I didn't have the funds to go roller and mine is a dd so fixing it is always a priority. I wiped a couple of flat tappets before I got one that seems to be holding out. (I know I still have as much in my three cams as I would in a roller setup but it was easier to come up with $300 three times than $1,000 once :frown: ) The one I've got now has lasted almost two years. Here's a link.

FULL THROTTLE SPEED - Item Description Page

I'm very satisfied with it. Nice idle and bottom end but seems to still pull well in the upper ranges. I'm sure you've read the wiped cam threads. This time I put eos on it for break in. Been using Rotella and STP. Maybe I got the formula for cam life down.

 

[Boost231]

flat tappets will work if you run a supplement with every oil change and break it in correctly.

 

[SloGN]

flat tappets will work if you run a supplement with every oil change and break it in correctly.

so far i have had good luck running the amsoil racing 20w50 the stock replacement cam that was installed about 3 yrs ago when the engine got rebuilt looks great. so maybe a another larger cam will hold up just fine.

 

[Boost231]

i have a comp 212/212 in mine going to run one bottle of EOS and 30W rottella for break in then 1 bottle of comp cams supplment and valvoline racing oil 20-50.

 

[Underboost]

Do any of you guys consider asking what type of engine a guy has before recommending HG's other than stock? If a guy has a stock lower end, with a cast crank and pistons, no billet caps or girdle, and seals it up with RJC gaskets, and runs 26 psi and has some detonation, he may drive over the crank. Just my $.02

In my experiences the stock bottom end can handle low 11's. Once you dip into the high 10's your on borrowed time.

 

[SloGN]

#4 rod journal cracked

well i rolled the engine over today and pulled the oil pan and inspected the main bearing and they looked great. I pulled the # 3 rod cap off and inspected that bearing since it was the cylinder that had the gasket failure. well that bearing looked good also. Now since the #4 rod was up i decided to inspect it's bearings also. The bearings themselves looked good. But the #4 rod journal has 2 small hairline cracks in them. also the rolled fillet has some distorted area's in them also will try and snap some pic of them.

 

[SloGN]

Update

SloGN is back up and running again. i installed a new crank with all new bearing top and bottom end of the engine along installed a new camshaft and lifters and a ported lower intake with the egr tower removed/blocked. I fired her up last night and broke in the cam then took her for a 60 miles drive and all seems good. I'm excited

 

[Hot Air]

Way to go Pat. Glad you got your car back on the road.
Conrad

 

[KWIKR 1]

I don't think with a stock crank/rods/piston vs aftermarket setup . that if you take a good "hit" with steel shim HG's your most likely going do some damage either way . I gotten the impression on this board there are a few running 10's with stock type HG's .

 

[bison]

Do any of you guys consider asking what type of engine a guy has before recommending HG's other than stock? If a guy has a stock lower end, with a cast crank and pistons, no billet caps or girdle, and seals it up with RJC gaskets, and runs 26 psi and has some detonation, he may drive over the crank. Just my $.02

Thats why im keeping the one in my sig out of detonation.

 

[Ttype6]

There's no non O-ringed head gasket that works better than the stock gasket. There's no non O-ringed head gasket that takes as much punishment as the stock gasket.

 

[bison]

There's no non O-ringed head gasket that works better than the stock gasket. There's no non O-ringed head gasket that takes as much punishment as the stock gasket.

What do you mean by non o-ringed? Any steel shim gasket or copper gasket (even without o-rings) will take way more abuse than a stock composite gasket. Nothing seals coolant like a stocker though.

 

[TURBOELKY]

what about those 2 hairline cracks, and the distorted rod journal fillets??

 

[SloGN]

what about those 2 hairline cracks, and the distorted rod journal fillets??

Come to find out that crank had been welded in the # 4 rod journal thats where the distorion was from in the rolled fillets where it was not machined down it not being machined down created a stress riser for the cracks to form. I'm just happy that it didn't break. i dunno how much power it takes @ the crank to run a 7.36 @ 96 then several 7.40 passes that day.




I got a used standard turbo crank from a friend and used it. the messed up crank is now a lamp

sorry that i didn't mention that.

 

[t3intercooled]

Here is my perfect headgasket

 

[V6POWER]

i dunno how much power it takes @ the crank to run a 7.36 @ 96 then several 7.40 passes that day.

Pat,

Those are good runs. What boost/timing/afr/60'? What track?

My 'lift queen' is still on the lift until we finish the rear end.

 

[SloGN]

i dunno how much power it takes @ the crank to run a 7.36 @ 96 then several 7.40 passes that day.

Pat,

Those are good runs. What boost/timing/afr/60'? What track?

My 'lift queen' is still on the lift until we finish the rear end.

Jim

MY tune was set around 11.4 AF with 20 degrees of timing on 114 octane. The boost was at 2-3 psi on the launch. then it would ramp up to 25 psi then come back down to 22-22.5 per the FAST datalogs. This was at peidmont dragway. I know that there is more power to be had even with the old set-up. i never did add any real timing to it for the fuel i was using (114)

 

[Ttype6]

Any steel shim gasket or copper gasket (even without o-rings) will take way more abuse than a stock composite gasket.

I've had the opposite experience. The engineers at Buick went from a steel shim gasket in 84-85 to the composite in 86-87 for a reason.

 

[Underboost]

I've had the opposite experience. The engineers at Buick went from a steel shim gasket in 84-85 to the composite in 86-87 for a reason.

Have fun staying at 25 psi with stock HG's and also cleaning the motor out every time you blow one of them.