DontBlnkBadWolf

iTrader: (7)

So, I need to take my 350 Block bored 40 over to the machine shop but I need to know what to tell them I need done besides the obvious of checking it. I am wanting to go with a Skip White Performance Stroker Kit but I have no clue on what to tell the machine shop what I need done to the block.

Can anyone let me know what to tell them?

The block is a 2 bolt main 1 piece RMS. Can they make it a 4 bolt or does it have to be splayed?

Bad Wolf

Aaron R.

If it is a decent automotive machine shop you need to go in and ask them all these questions. An experienced auto machinist can answer all your machining questions, and you really need to be communicating with them so they know what your goals are. The shop can help you avoid mistakes on your part and guide you to the final end goal.

Sourcing all your parts and then going to the machine shop and telling them what you want is only for people who are experienced in engine builds, OR people who dont have access to a decent machine shop.

Every day there are people posting all over these forums with questions about parts and changes they are throwing at their engines, hoping it will all just somehow come together and become that smooth running dream machine. Find a reputable shop with experience doing this stuff and save all the guess work.

AlkyIROC

It's already bored 0.040" over? Any good machine shop won't touch it unless you're providing even bigger pistons. A block should never be bored without having pistons to check wall clearance. A proper build means assembling and disassembling an engine anywhere from 3-5 times to check a lot of clearances.

Block gets bored for new pistons. Assemble to check deck height. Strip down and deck block for squareness, etc, etc.

There's a big difference between assembling an engine and building an engine. Chances are, after all the machine shop work is completed, it can be cheaper to buy a short block already built. Unless you have the knowledge and tooling to do your own machine shop work, the cost to have an engine properly machined doesn't justify the extra cost unless you have some rare numbers matching engine and even then if the block gets decked, the numbers are gone.

NoEmissions84TA

iTrader: (1)

Read this: https://www.thirdgen.org/forums/afte...ic-roller.html

DontBlnkBadWolf

iTrader: (7)

Alright, then no to Skip White, I take it?

NoEmissions84TA

iTrader: (1)

From my experience, NO SKIP WHITE.

Orr89RocZ

iTrader: (20)

Tell em to check bore for concentricity and wall thickness to see if it can be used with just a hone or if it will need to go .060 to clean up which starts getting thin on a lot of blocks

if you want 4 bolt it will have to be a splayed conversion usually on the center mains. Program Engineering or maybe Milodon or CIP may have caps for sale for that. Stud the others and likely need to line hone the mains. Gets pricey

then if they are a good shop that does performance work, they likely have connections to suppliers to get cranks rods and pistons. Ask them what they can do for you. Tell em you want a 3.75” stroke crank and make it a “383”, well actually 385-388 depending final bore sizes. They can piece together components bearings and rings

if they cant i would not use them.

DontBlnkBadWolf

iTrader: (7)

I didn't see this until now. Thanks for the tips. I'm going to be taking it to the shop either Wednesday or Thursday. I've been looking at kits from CNC-Motorsports and other places. Anyone have sites that maybe not as well advertised but quality is good?