Is .060 over to much for a 350?
 

There is a 350 rotating assembly on CL and was wondering is .060 over is to much for the 350 block? Thought about getting it!!

Only if its buildable, if not, your pretty much done if it needs boring or you can get 8 sleeves put in...lol
Cp

Probably depends on the casting. I know of many people that have bored a 350 .060 over with no issues...Only way to know 100% is to have the block sonic tested..I believe the 010 block is one of the better castings.

I wouldn't be afraid to try it...but It's easy for me to say that when it's your money. :D

HAHA yea I bet it is and I haven't got a block yet this is just the rotating assem. I can get blocks for $100 dollars a piece!!! So not that high only thing is the rotating assem. 350 bucks not that bad but I think I'd rather spend the extra money on a new one and get .030 over pistons!!! Just gonna see what yall thought!!

At .060 over on a 350 block I would sonic test first as we have not seen many blocks that would make .060 over and be used in a performance application.

We had a customer bring in a block and it sonic tested .120 on the thrust side and he said the core shift was good but I said its not a very good indicatior.

At .060 make sure its plate honed as well.

The 350 has the broadest piston offering of any engine.
SRP offers dome pistions in +.020, +.030, +.040, +.060.
Flat tops are offered in +.020, +.030, +.035, +.040, +.060, +.070.
Rule of thumb - bore the block to the smallest diameter to keep the wall thickness at a maxium.

Dave

We take them .060 all the time, we even go .080 on a lot of race engines with out any issues.

:shock: :shock: :shock: :o :o :o

crack , boom splash. :cry: :cry: :cry:

I was surprised at this because I here of guys going .060 over quite often...but to the OP I would trust this guy's advice over most anyone in regards to engine block machining .

I've had a good many 010 blocks bored .060 & never had a momments trouble, but I'd never go .080 over :shock: , IMO> thats just asking for it.
Bottom line, have it thoroughly checked out by a competent machine shop.

i had a 350 block bored to 4.125 because we had all the other parts laying around and needed a motor asap. we filled the bottom 1/2 with block filler. It ran a little warm :D I'd come in after a 15 lap feature @ 250*. This is in a imca modified, i turned it 7500, ran it about 10 races to finish out the season.

Running a .060 over block now with no issues,of course it filled from the waterpump holes down.Used a many of .060 blocks without issue..

Thats why we sonic test them and I have some that I know Won't go .060 over but if you think they are OK I guess it makes a big differance.

One thing to keep in mind, from .060 to ,080, the cylinder is only .010 thinnner, as its a diameter. .010 isn;t much, and won't make or break it.

Frank