Thread: Block Repair

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While clearencing a block for a stroker motor I hit the water jacket on the bottom of one of the cylinders. I thought about trying to hard block it to seal it up again. My question is, do you think it will work? Hate to junk out a block.

IMO, you should talk to a machine shop and get their opinion before hard blocking it.

IMO, you should talk to a machine shop and get their opinion before hard blocking it.

IMO, you should talk to a machine shop and get their opinion before hard blocking it.

if you can ..the way i would fix it is with a pipe plug drill and tap it for a pipe plug put in with some JB weld on the plug screw it in and let setup. then grind the plug head if needed then do a short fill with block rock or weld it then fill . try to use a smaller pipe plug to fix the hole

if you can ..the way i would fix it is with a pipe plug drill and tap it for a pipe plug put in with some JB weld on the plug screw it in and let setup. then grind the plug head if needed then do a short fill with block rock or weld it then fill . try to use a smaller pipe plug to fix the hole ....this is nice the form is screwed up should i try to jiggle the handle it still running

Never had any leak with fiberglass resin. Just tilt the block over to the side while on engine stand and put a piece of duct tape over the hole and mix the resin and hardner and pour it in until about 1" deep.

Originally Posted by Racecar100

Never had any leak with fiberglass resin. Just tilt the block over to the side while on engine stand and put a piece of duct tape over the hole and mix the resin and hardner and pour it in until about 1" deep.

in time it will crack been there did that .block rock is much better moves with the block were the resin can not if you use resin i still would plug the hole with a pipe plug

Originally Posted by pat mccarthy

in time it will crack been there did that .block rock is much better moves with the block were the resin can not if you use resin i still would plug the hole with a pipe plug

Well we are the owner of the speed machine shop and we've done several engine with hole in the block for the stroker and it's still running on the oval track dirt and drag racing and no leak. By the way wa are the home of several track champion engines in several classes... We have been in business since 1972. Do you think we don't have any experance????

I know whos high dollar racin engines are full of goo now...with holes in the block.......

Some of the new liquid adhesives are amazing,I would think anything along that line would work well,using the tactics listed above.
I would tap the hole and then use the plug with red loctite and then either use the resin or some sort of good block fill.

Some of the resins/liquid steel and adhesives will probably outlast the rest of the engine..........
If that stuff is anywhere near like body panel adhesive ,its gunna do the trick,for along time.

How are you going to tap and plug the hole there at the pan rail when the block machined for stroker is too thin??????

Originally Posted by Racecar100

Well we are the owner of the speed machine shop and we've done several engine with hole in the block for the stroker and it's still running on the oval track dirt and drag racing and no leak. By the way wa are the home of several track champion engines in several classes... We have been in business since 1972. Do you think we don't have any experance????

well i send you the 100 over bbc that the resin crack in ok. hey do what you want i really do not give a $hit do you think i do not have any EXPERANCE ???

Originally Posted by Racecar100

How are you going to tap and plug the hole there at the pan rail when the block machined for stroker is too thin??????

well howthe hell do we know were he ground thru ? can it be tap ? hell i do not know no photo? i would still try to plug it but i bow to you. sounds like you have cut thru more blocks then i have

Well All I know all the stuff that we tried did worked and lasted for long time. The first block we done lasted eight years in a drag car and never leaked until it develop cracks in the main webbing.