Engine Sleaves
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Joined: Feb 2004
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Engine Sleaves
Hi all,
I'm doing my first rebuild on an auto engine, and being a Ford man couldn't resist a 77' Highboy. The current engine is a 400, which was boared .040 over for it's last overhaul. My machine shop is telling me to either go ahead with .060 over, or find a new block.
In the Diesel world, we just replace sleaves. I know these engines can be sleaved, but my machinist is insisting that it will weaken the block too much. Ignoring the high cost of sleaves, does anyone have experience on this? To me, going sleaves just seems logical. Down the road when the engine needs another overhaul, I can press in new sleaves.
By the way, the plan (given a solid block) is a Crane truck cam & lifter set, roller rockers, Edelbrock 400 intake & 650 CFM carb. I'm porting the heads as we speak.
Thanks for all thoughts.
Laughing Gas
Joined: Nov 2002
Posts: 1,198
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From: Fairmont
I have bored the 400 block .060 with no problem. Realize the cost to sleeve an entire engine 1 time would be equal to boring it about 6 times. Unlike the diesel world, you don't just "pop" the sleeves in and out.
If you don't like the 060 idea, get a block and start all over. Chances are you won't completely bore that engine that many times.
If you don't like the 060 idea, get a block and start all over. Chances are you won't completely bore that engine that many times.
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Thanks guys. I'm probably just going to search for a different block at this point. They aren't hard to find, and to me it's not worth taking the chance of going .060 over.
For the price of sleeves, I can buy 2 blocks and have a spare!
A through block test with magnaflux and sonic testing is worth it regardless.
David
For the price of sleeves, I can buy 2 blocks and have a spare!
A through block test with magnaflux and sonic testing is worth it regardless.
David
