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Can I sand blast my piston rods and piston. I know I cans sandblast the pin hole or the pin. Can I also sandblast my crank caps? Does the rough surface affect the bearing installation? thanks

Can anyone tell me the stock length of a 1966 442 400E block push rod length? This the the engine with the .921 lifters. I have a length of 9.4375 on the ones that I have removed. i have searched the web for hours.

Anyone know one can find the .921 lifters for a 66 442 400?

How long should stock push rods be? If the piston is marked with .030 does that mean it is bored .030? How can I tell if a cam is good or not? Worn or not?

I have just purchased a used olds 442 400 engine. I assume the specs of the pistons are .030 as the top of the piston has that engraved in it. How do I find out the stock length of push rods for. the 66 olds 400 engine? How will I know if the main bearings and rod bearings have up sized to a...

Someone told me that the marks on top of the pistons is a homemade attempt at creating more clearance for the valves.

How do I measure chambers? Thanks

All the pistons have that same half circle I dentions that look like the valves have touched the piston. But would the valve move that distance and stay in the same line.

Can anyone explain these pistons. Do they look right with the half circled indention and completely flat top

What would be the benefit of the ProComp heads vs. the stock B 66 442 heads. Sorry about the typo on the last post.

Here is ID info. They are ProComp. can you tell me if this is the correct piston for a stock 400 or are they aftermarket? what would be the be if it’s of the ProComp over the stock B heads. The valves seem to be the same size.

381917 on block and number 2 on heads

What about the heads I had built for the 330 fitting on the 400

I have looked at those numbers but the casting resources online say it could be a 330 or 350.

What does blocking the center intake do for the performance?

How can I tell the difference between a 66 350 and a 66 330?

I am very excited about my new 400. Two years back I had a speed shop put together a high performance top end kit for my 330. I had this done because I feared I may never find the correct 400. After all, I have been looking for the correct 400 for 8 years or more. Will the new aluminum heads...

Just received my new 400. And it is the real deal. B casted heads and correct block numberIn

The engine code on the 400 is 390925E. When I had my heads for the 330 built and matched to push rods, lifters, cam etc they said they would make sure they were 39o bank angle. is this possible? I have yet to put them on the motor. They are all aluminum heads. The good news is that all motors...

What parts from the 330 and the 425 will fit on the 400? Head, lifters, push rods, pistons, etc. Edit