BOOM it finally broke

bentley429isBAC · Jun 10, 2011

I also vote stock shortblock. Should be able to get it running again for less then $300 long as the heads didnt eat it too. Pulley it down a hair if your nervous its going to happen again. Even if it happens once a year, $300 and a weekend is a pretty fair price to play.

Boosted92LX · Jun 10, 2011

+1 Late Model resto short block $699 and driving again. Keep the blower and calm it down.

1991notchbackLX · Jun 10, 2011

Sorry to hear that Jeff! I know what you mean about expenses piling up. No matter what you do, there's always something else to buy or fix. This Barracuda restoration project I'm finishing went INSANELY HIGH over budget. They're worth it while you're out there having fun, but blowing **** up just makes you ask yourself why the hell you keep doing it to yourself over and over, haha.

90lxcoupe · Jun 10, 2011

1991notchbackLX said:
Sorry to hear that Jeff! I know what you mean about expenses piling up. No matter what you do, there's always something else to buy or fix. This Barracuda restoration project I'm finishing went INSANELY HIGH over budget. They're worth it while you're out there having fun, but blowing **** up just makes you ask yourself why the hell you keep doing it to yourself over and over, haha.

I agree, but this wasnt my motor.

1991notchbackLX · Jun 10, 2011

90lxcoupe said:
I agree, but this wasnt my motor.

Haha, two Jeffs in one thread. Cobra912 is also named Jeff.

MyHoFoSho · Jun 10, 2011

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Cobra912 · Jun 10, 2011

Thanks guys.

I don't know what to do. See it wasn't exactly stock, I mean stock block, but that's not what broke. Well ok it did when the rod went flying through it. At least that 's my belief right now, only pulled the heads. May have a bent valve or two. A hole punched in both sides of the pan, hole in the block. SRP pistons, SRP I beam rods, Eagle crank, canton pan. Hope my new comp cam is ok, not counting on it.

I went too big, should have left it the way it was. Before I had dinky 1.90/1.60 heads, a small comp cam .512 lift, performer II intake, and a little paxton 1220SL. Well I got carried away put the bigger heads, bigger cam, bigger intake and of course a big ass Vortech YS with meth! The previous combo dynoed at around 460/421 to the wheels at 5200 rpm and ran 10.60's @ 125 on a consistent basis. So......I think I was making a wee bit too much with the new combo. I didn't bother pulling the shortblock for a going over. Hindsight now for sure.

I could throw a stock shortblock back in, hell I could get my old 86 motor back for 50 bucks, but then I won't be able to use anything I have. I could buy that nice new stocker for 700 bucks but it's all 50oz and then I need to replace all my nice and expensive SFI 28oz stuff.

Bigger always means never good enough.

It's obituary will be in the paper next week.

Cobra912 · Jun 10, 2011

tannerc91gt said:
Hmm... I know a guy with a 410w. Would fit nice in there

That sucks though, good luck with gettin another one put together.

I'd like to have your motor, too bad you weren't closer. Coming to Canada anytime soon? We have mosquitos the size of small dogs already this year

tannerc91gt · Jun 11, 2011

Im sure they'd love me smuggling a large crate across the border

Boosted92LX · Jun 11, 2011

Cobra912 said:
Thanks guys.

I don't know what to do. See it wasn't exactly stock, I mean stock block, but that's not what broke. Well ok it did when the rod went flying through it. At least that 's my belief right now, only pulled the heads. May have a bent valve or two. A hole punched in both sides of the pan, hole in the block. SRP pistons, SRP I beam rods, Eagle crank, canton pan. Hope my new comp cam is ok, not counting on it.

I went too big, should have left it the way it was. Before I had dinky 1.90/1.60 heads, a small comp cam .512 lift, performer II intake, and a little paxton 1220SL. Well I got carried away put the bigger heads, bigger cam, bigger intake and of course a big ass Vortech YS with meth! The previous combo dynoed at around 460/421 to the wheels at 5200 rpm and ran 10.60's @ 125 on a consistent basis. So......I think I was making a wee bit too much with the new combo. I didn't bother pulling the shortblock for a going over. Hindsight now for sure.

I could throw a stock shortblock back in, hell I could get my old 86 motor back for 50 bucks, but then I won't be able to use anything I have. I could buy that nice new stocker for 700 bucks but it's all 50oz and then I need to replace all my nice and expensive SFI 28oz stuff.

Bigger always means never good enough.

It's obituary will be in the paper next week.

Heck, you could sell the 28oz flywheel or damper and get enough to buy all of the 50oz stuff at a salvage yard.
Craigslist, baby!

It's not the end of the world!

Cobra912 · Jun 11, 2011

you're right but am I already in a sinking ship, it's all new parts, and you can never sell used parts at new car part prices

say that 3 times quickly

Cobra912 · Jun 11, 2011

tannerc91gt said:
Im sure they'd love me smuggling a large crate across the border

I think you should take a big azz Vortech kit in trade

bentley429isBAC · Jun 11, 2011

If it makes you feel better last year I pulled the engine in my car probably 5 times had the heads off almost every weekend for awhile because the damn head studs were pulling the threads right out of the block. Then I picked up a fresh 306 hyperusucktic shortblock off a buddy for $100, put that in and broke #8 piston within 30 street miles and 2 hits. Then, a lot of monies was spent.

Keep it simple. If the heads aren't bad just gotta replace a couple valves do that, F cam, whatever intake you were running and pulley that thing down it was probably making 550 at 6200 where I am assuming you were shifting around. Or sell that thing off and get a smaller blower. S trim, SQ, F2, Novi 1000, F1r, P1SC, Novi 1200, F3, Si any of those will work

A 50oz balancer is less then $100, and you can probably get a different weight for your flywheel.

Rick 91GT · Jun 12, 2011

My guess is a rod bolt let loose in the Eagle SIR Ibeam, then all hell breaks loose.

Did you run a girdle? Was that a forged crank?

Cobra912 · Jun 12, 2011

That's my guess too Rick or that it snapped, I'm waiting for my dad's engine hoist to yank it. I was running a girdle. Honestly I can't remember what the shop put in it as far as crank material goes, see when i take it apart

LarsD · Jun 12, 2011

Time for a Dart block with better rods.

Cobra912 · Jun 20, 2011

Well took it apart. #8 SRP rod broke, spun around in block punching holes in both sides of block and my canton pan, and bending the main stud girdle and slapping the piston repeatedly. Broke the cylinder skirt, lodged a piece of it , wedging the cam, locked it up, causing my ARP cam bolt and dowel to shear off in cam, and intake valves slapping the pistons.

Completely totalled

Enjoy...............

SteedaGT9150 · Jun 20, 2011

well that sucks....

sorry mang

90stang5speed · Jun 20, 2011

That sucks man. Thanks for sharing the pics. Hope you have good luck finding & building the next one.

Cobra912 · Jun 20, 2011

thanks, what really hurts is that the cam and heads had less than 100 miles on them

arp rod bolts were nice and tight

BOOM it finally broke

bentley429isBAC

Boosted92LX

It's only an inch or two. What's the big deal?

1991notchbackLX

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MyHoFoSho

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tannerc91gt

This last 25% is foreign territory at this point

Boosted92LX

It's only an inch or two. What's the big deal?

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bentley429isBAC

Rick 91GT

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