I have 2- NOS 10051107 9.8 deck GM Bowtie blocks with 4.47" bores. These are Mark IV design with two piece rear main seals and have been out of production for years. I also have NOS in the factory packaging 9 to 1 JE Forged Pistons 4.47" bore. $4,000.00 for all or will separate. Have photos of everything for email. Many more blocks, pistons available. Craig [email protected]

If u can please tx pics of blocks to 2312331513

Interested in just blocks. Also if they are fresh water or salt water use.
Tks
John

Any 502 Bowtie blocks?

These are 502's with a 4.47" bore and a stock 454 -4.0" stroke.

I saw in your post that you had many other blocks so I figured Id ask. I need a 502 Bowtie tall deck, mine are 10.2 deck, 4.500 bore. Destroyed #1 hole

I do have one tall deck Bowtie block. I'll need to check the bore size and decide if I want to sell it. I'll get back to you later Sunday. Thanks, Craig

Hi Craig, looking for a gen 5 or 6 502 block that will clean up at .030 (4.500) Thanks

I only have one complete long block 502 that turns freely but has a spun bearing. Very low hours.

I'm going to keep the tall deck Bowtie Block but thanks for your interest. Craig

NOS Bowtie blocks still available!