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#1
05-03-2021, 10:16 AM
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Can this be sleeved effectively?
....and the followup......would it be worth it to do so?
Many moons ago, a friends '73 .020 over 455 ate a threaded rod from his valve cover T-handle. He finally decided to let the block go. He was going to scrap it, but it pains me to a see another traditional Pontiac block leave this planet, so I'm curious if it can be saved. Can this be fixed? Pretty hefty crack in #2 cylinder wall. Thats the only damage. All else looks good, just needs a cleanup. 
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. Mark S . Who needs nice and pretty, when you can have mean and nasty? KRE Aluminum headed 463CID 73 LeMans. Used to run 10.6x @ 124.55. 3700lbs . So much for 2020...shootin for 9s in 2021...and in 2022 apparently.....looks like 2023 as well. >>My 73 Build thread |
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#2
05-03-2021, 10:52 AM
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I see no reason why it can not be sleeved successfully. I would however since its only .020 over have the block bored to ,030 because sleeving can distort the adjacent cylinders.
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1979 Trans Am WS-6 .030 455 zero decked flat pistons 96 heads with SS valves 041 cam with Rhoads lifters 1.65 rockers RPM rods 800 Cliffs Q Jet on Holley Street Dominator ST-10 4 speed (3.42 first) w 2.73 rear gear __________________________________________________ _______________________________ 469th TFS Korat Thailand 1968-69 F-4E Muzzle 2 |
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#3
05-03-2021, 11:36 AM
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That crack looks like it may go all the way up into the deck surface so it may need a combination of Boring, crack stitching and sleveing.
A Mag test needs to take place first in other words and if that clears the way then drilling or grinding out the ends of the crack and boring and sleveing will get it back on the road.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
05-03-2021, 04:31 PM
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Quote:
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#5
05-03-2021, 11:24 PM
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I think they were all damn fine answers! Heck, I didn't even know crack stitching was a thing..... and .030 it goes. Thanks!
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. Mark S . Who needs nice and pretty, when you can have mean and nasty? KRE Aluminum headed 463CID 73 LeMans. Used to run 10.6x @ 124.55. 3700lbs . So much for 2020...shootin for 9s in 2021...and in 2022 apparently.....looks like 2023 as well. >>My 73 Build thread |
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