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Rebuild in 3...2...1...
https://www.slantsix.org/forum/viewtopic.php?t=20673		 Page 1 of 1
Author:  BigBlockBanjo [ Wed Nov 08, 2006 10:27 pm ]
Post subject:  Rebuild in 3...2...1...
Hey Guys!
Computer's been down for a week, so it's short notice.
The engine is going to the shop this week sometime.
Bored, cleaned, Cam bearings, Ect.

Q.1
I'm considering milling the block .100" What kind of problems will this cause? I did a lot of measuring, and I think my stock pushrods will just work.

Q.2 I want to run a Erson 270-280 cam...about .480" lift. Will I have Piston-valve problems?

Q.3 Will 340 valve springs require the pockets to be cut(larger)??

Any help will be appreciated, as I will be taking the engine this weekend sometime. Thanks.
Author:  Joshie225 [ Thu Nov 09, 2006 12:51 am ]
Post subject: 
1. I prefer pushrods that are the correct length. Parts last longer that way. The head bolts shouldn't bottom out in the block, but check. Head bolt washers fix this if it's a problem.

2. A 225 heas tons of valve to piston clearance. I seriously doubt you'll have a problem, but make sure the valve spring retainer clears the valve guide. You run out of clearance there first. At least I did.

3. Nope. They fit fine. Get the larger retainers though.
Author:  dakight [ Thu Nov 09, 2006 3:38 am ]
Post subject: 
That sounds similar to what I am doing. The standard advice I got, which seems reasonable and sound, is to do the head work first, measure the combustion chambers, then shave the block to get to the appropriate compression ratio. My target is between 9 and 9.5 to 1.
Author:  BigBlockBanjo [ Thu Nov 09, 2006 10:57 am ]
Post subject:  Engine Rebuild..3...2..1
Thanks guys.
I have no way to accurately measure the chambers, I'm just "Helping" it out a little. I'll probably run an Offy 2x1, and Hooker Headers. I figure I can do the head work later, as funds come in: since it's Easy to access.
I fell that a 270ish cam will be upper limit with that combo, but it will be great as I improve the airflow. For now, the "Stock high-velocity ports will contribute to a near 100% Volumetric Efficiency for the Air-Fuel mixture."
hehehe...yeah right. :)
I'm getting the Engine kit from NAPA, they are having a huge sale this month. I'm not road racing at 6000 rpm, so I think it will be fine for a daily driver. I don't know about the Melling oil pump; maybe they'll trade me out for a 5-bolt rebuild kit.....
Thanks again!
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