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T5 bolt sizes and stuck bolts?

2.8K views 7 replies 7 participants last post by  stangg  
#1 ·
Alright, I'm going crazy with trying to figure out what bolts I need. What size bolts do you use for T5 to latemodel bellhousing, what size is the crank bolt on the front of the 5.0 and what size/type of bolts do i use for my flywheel and new clutch. They didn't come with bolts.

While we're on the topic of bolts, how would you remove a stuck bolt. Theres a water pump bolt that broke off in my block with about 3/4" sticking out. I tried vice grips but its a no go, just keeps stipping threads down. Any thoughts? Thanks all!
 
#2 ·
What size bolts do you use for T5 to latemodel bellhousing, what size is the crank bolt on the front of the 5.0 and what size/type of bolts do i use for my flywheel and new clutch. They didn't come with bolts.
IIRC, the trans to bellhousing bolts are 12mm. They are metric, that much I recall. Cant help with the 5.0 crank nut. I would buy new ARP clutch/flywheel bolts, piece of mind is worth it.
 
#4 ·
The trans to bell bolts are metric. I want to say M14, but don't know for sure... The clutch bolts will depend on which flywheel you use - late-model 5.0 fly's are metric.

On your broken bolt, soak with PB. Weld a nut onto the end of the broken stud, then you have something to use a wrench on. ;)
 
#6 ·
What they said.

Trans to Bell is 12mm

Mine is on a 289, so the Engine is SAE, Don;t know about the 5.0

If the weld on nut does not work, Drill a small hole in the middle all the way through, then get bigger and bigger
IF you get lucky ( as I have on a few of the bolts ) one of the drills will "rip out" the treads of the old bolt and leave the good threads.

If not lucky, Drill out for a helicoil. You can get helicoils at the auto parts store. Not cheap but work.

DO NOT be temped to use a easy out (they are not for stuck bolts)
 
#8 ·
For the bellhousing, I think they are 12 MM as well, but make sure you get the right thread pitch. I don't recall what the correct pitch is, but I think it's the coarser of the two options.