Hardblock?

[James L Miller]

Mark, thank you for standing up for those of us that want to run an odd-ball (Non-Chevy) combo. I didn't see a Mopar 273 on Carl's website.

http://hinksonautomotive-cncblocks.com/products/

[Bill Bogues]

On our 267 chevy we took a 305 block and sleeved it down to 3.50. Didn't fill it and had reasonably thick cylinder walls. Still leaks 2 to 4%after 60 runs. Aftermarket block is the best way to go but we ended up with a decent block for half the price of aftermarket.

[David Lee]

Originally Posted by Bill Bogues

On our 267 chevy we took a 305 block and sleeved it down to 3.50. Didn't fill it and had reasonably thick cylinder walls. Still leaks 2 to 4%after 60 runs. Aftermarket block is the best way to go but we ended up with a decent block for half the price of aftermarket.

Do you think adding hardblock would have helped the leakdown?

[carl hinkson]

Originally Posted by Bill Bogues

On our 267 chevy we took a 305 block and sleeved it down to 3.50. Didn't fill it and had reasonably thick cylinder walls. Still leaks 2 to 4%after 60 runs. Aftermarket block is the best way to go but we ended up with a decent block for half the price of aftermarket.

From what I have seen with sleeving blocks and more so all eight sleeves put a lot of unwanted stress in the block and after a few heat cycle the cylinders don't stay round.

[carl hinkson]

Originally Posted by James L Miller

Mark, thank you for standing up for those of us that want to run an odd-ball (Non-Chevy) combo. I didn't see a Mopar 273 on Carl's website.

http://hinksonautomotive-cncblocks.com/products/

I have no interest in CNC machining Mopar blocks not much call over the years so its not worth tooling up for a block you might do once a year