Machining Question
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 779
Likes: 1
From: Minneapolis MN
Machining Question
Hey guys, long time no see. College is over, and its time to get back to work on the Corvette.
My big block has been sitting far too long since the machine work was done without getting built. I just have one problem before I can build it.
I need to have the pistons machined for valve clearance. Mocking the engine up would be a little complicated, and what I'd like to do is just cut the pistons for something near the max allowable. Is this reasonable?
Pistons are TRW/Speed-Pro 2465's and the heads are 071 open chamber castings.
Can anyone recommend a machine shop in the Twin Cities area? What exactly do I have to tell them so they know where to relieve the pistons?
Thanks for the help everyone.
My big block has been sitting far too long since the machine work was done without getting built. I just have one problem before I can build it.
I need to have the pistons machined for valve clearance. Mocking the engine up would be a little complicated, and what I'd like to do is just cut the pistons for something near the max allowable. Is this reasonable?
Pistons are TRW/Speed-Pro 2465's and the heads are 071 open chamber castings.
Can anyone recommend a machine shop in the Twin Cities area? What exactly do I have to tell them so they know where to relieve the pistons?
Thanks for the help everyone.
Drifting
Joined: Jul 2002
Posts: 1,943
Likes: 1
From: Rosemount MN
Originally Posted by ddn
Can anyone recommend a machine shop in the Twin Cities area? What exactly do I have to tell them so they know where to relieve the pistons?
Thanks for the help everyone.
Thanks for the help everyone.
Phone number 715-273-5027
Talk to Mike or John
Just tell them what parts you have and what you plan to do.
Great shop, great guys, far enough away from the Twin Cities to give great service at a reasonable price, just across the river from Red Wing.
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
You may be going through a lot of work for nothing. Unless you are running a very high lift cam chances are you have plenty of clearance. What is your intended lift of the cam? A mockup is not thatdifficult and can tell a lot. I just use 1 piston without rings on it and assemble 1 head with only 1 set of valve springs.
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 779
Likes: 1
From: Minneapolis MN
Originally Posted by Gordonm
You may be going through a lot of work for nothing. Unless you are running a very high lift cam chances are you have plenty of clearance. What is your intended lift of the cam? A mockup is not thatdifficult and can tell a lot. I just use 1 piston without rings on it and assemble 1 head with only 1 set of valve springs.
Advanced
Joined: Jan 2006
Posts: 72
Likes: 0
From: Canton Georgia
Hi lift is related, but it's really dependent on how quick the valves come off the seat. Solid Rollers are the quickest, hydraulic rollers and solid flat tappets are next, and hydraulic flat tappet are the slowest (normally).
