Thread: I need some opinions

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Several months ago I aquired a 427 tall deck truck block with 4-bolt mains for $500.The block looks to be in very good shape, the only problem is in one cylinder the piston pin slid out to one side and cut a nasty groove in the side of the bore. The guy at the machineshop I use said it was no big deal to resleeve that cylinder, and it probably would only cost $40 or $50. He also said they have done the same procedure to many race engines with no problems. I am planning on trying to get a lot of power out of this thing on a future build, do you think this one cylinder could give me problems or should it hold up just fine?

Thanks guys

Adam

no big deal i use a thick wall sleeve in them all the time. if done rigth you will have a hard time seeing the sleeve i step the sleeve in at the bottom of the bore .top fuel engines have sleeves .both of my donovans have sleeves .i have done many world and dart and bowtie big blocks you just do not throw a block out if it needs a sleeve

Just bore it out to 4.375 and be done with it. You can make 526 cid out of it easy.

i would say if you just can bore it and clean it out you would be lucky .if you could bore it to 125 over at this point it is to max bore some of the truck blocks are not very thick but some are very thick wall i had a very old one that could of gone over 4.375+ and a short fill 4.500?.i pick up some newer tall deck GM blocks new that were cut out like a 454 block for more stroke i used one with a 4.500 crank and H beam rods with not much block work you can get 525 with a 060 over bore and 4.500 crank . the tall deck just do not fit easy in to some cars you can find blocks on e-bay dart or world or bow-tie used and for not much more build a 632or 572

Originally Posted by Racecar100

Just bore it out to 4.375 and be done with it. You can make 526 cid out of it easy.

Not without a sonic test.

We done several blocks by boring it to 4.375 and never had any problem. Most of them are in the Pulling trucks.