Need B-1 orginal pistons

Posted By: mac56

Need B-1 orginal pistons - 01/07/12 02:24 PM

Need a new set of pistons. Long story short my machine shop put to much clearance in my block for my pistons. Now I'm going to have to fit a piston to the block. Where have you found the best value for customs?
Thanks
Mark

Posted By: JohnRR

Re: Need B-1 orginal pistons - 01/07/12 03:30 PM

Diamond .

Posted By: Performance Only

Re: Need B-1 orginal pistons - 01/07/12 03:35 PM

we're a distributor for Diamond pistons and have spec'd a lot of B-1 customs. let me know if i can help.

Posted By: Mopar-Al

Re: Need B-1 orginal pistons - 01/07/12 03:39 PM

What size are your old ones? What combo? New? You may could recoupe some bucks selling them.

Posted By: mac56

Re: Need B-1 orginal pistons - 01/07/12 04:19 PM

My block was supposed to be 4.375 and the machinist honed it to 4.380 so I have .013 clearance already

Posted By: Bob_Coomer

Re: Need B-1 orginal pistons - 01/07/12 04:37 PM

Quote:

My block was supposed to be 4.375 and the machinist honed it to 4.380 so I have .013 clearance already

Man, seems that could have been avoided. Did he have the pistons at the time of the machine work? Why should you pay for HIS mistake? Atleast from my view, I would ask for compensation.

Posted By: mac56

Re: Need B-1 orginal pistons - 01/07/12 05:18 PM

Quote:

Quote:

My block was supposed to be 4.375 and the machinist honed it to 4.380 so I have .013 clearance already

Man, seems that could have been avoided. Did he have the pistons at the time of the machine work? Why should you pay for HIS mistake? Atleast from my view, I would ask for compensation.

He had the pistons and the paper work from Ross. This engine ran this year and the mistake was not found until it was taken apart for inspection so compensation won't happen. I fault myself for not checking the work on assembly.

Posted By: Jeepmon

Re: Need B-1 orginal pistons - 01/07/12 07:11 PM

As I recently found out, B1 pistons are custom only and was told there is no off the shelf piston made.. I got a quote from JE Pistons of $80.00 per, plus the cost of the pin.... however I doubt this to be true as I have found every other custom made piston to be over $100 per..

So if anyone would post some prices, I'm sure it will be helpful to a lot of people here..

Posted By: Al_Alguire

Re: Need B-1 orginal pistons - 01/07/12 08:30 PM

You dont wanna know what mine cost

Posted By: abodiesonly1

Re: Need B-1 orginal pistons - 01/07/12 08:37 PM

Can you have them coated? Not sure how thick coating is but it may help.

Posted By: Jeepmon

Re: Need B-1 orginal pistons - 01/07/12 08:41 PM

Quote:

Can you have them coated? Not sure how thick coating is but it may help.

When I looked into having my pistons coated.. I think the coating is good for .002 per side which will only be .004 total... and there's nothing to prevent the coating from scratching off..

Posted By: Jeepmon

Re: Need B-1 orginal pistons - 01/07/12 08:42 PM

Quote:

You dont wanna know what mine cost

Al.. you should know by now.. I live my fantasy life thru you..

Posted By: pittsburghracer

Re: Need B-1 orginal pistons - 01/07/12 09:08 PM

I think I paid around 100 dollar and have my old 440-1 pistons valve reliefs cut so I could either use my 440-1 heads or my B1 heads.

Posted By: Super Scamp

Re: Need B-1 orginal pistons - 01/07/12 09:09 PM

I would have you manchinest pay for it.

Call Best Machine they can get any B1 piston you may need.

Posted By: 23T Hemmee

Re: Need B-1 orginal pistons - 01/11/12 05:08 PM

The good coatings are only good for about .0005" on each side.

Posted By: Jeepmon

Re: Need B-1 orginal pistons - 01/11/12 06:50 PM

Quote:

The good coatings are only good for about .0005" on each side.

http://www.swaintech.com/store.asp?pid=10964

Quote:

PC-9� is commonly used to salvage a motor that has excessive piston to wall clearance. Vintage motors and other applications with hard to find pistons can
have up to .004� of PC-9� added to the diameter of a piston to tighten piston to
wall clearance.

Posted By: mac56

Re: Need B-1 orginal pistons - 01/11/12 10:36 PM

I spoke with diamond this morning and I think I have narrowed my choice to roughly 6.535 rod and 1.35 piston or 6.385 rod and 1.50 piston.

Posted By: Bob_Coomer

Re: Need B-1 orginal pistons - 01/12/12 02:17 AM

Quote:

I spoke with diamond this morning and I think I have narrowed my choice to roughly 6.535 rod and 1.35 piston or 6.385 rod and 1.50 piston.

Just My

go with the longer rod. It will make the piston much lighter, and the rods are common too.. Its your typical +.400 Chevy rod used in lots and lots of combo's.

Posted By: Al_Alguire

Re: Need B-1 orginal pistons - 01/12/12 06:48 AM

I have generally always gone with the 6.53" rod in that application. i like ot keep the bobweight as light as possible in a stock block deal for sure.

Posted By: MR_P_BODY

Re: Need B-1 orginal pistons - 01/12/12 07:28 AM

What diameter pistons... I have a new set of b-1 m/c
pistons for a 4.440 bore that will be for sale
also what compression

Posted By: mac56

Re: Need B-1 orginal pistons - 01/12/12 11:09 AM

Quote:

What diameter pistons... I have a new set of b-1 m/c
pistons for a 4.440 bore that will be for sale
also what compression

4.380

Posted By: 23T Hemmee

Re: Need B-1 orginal pistons - 01/12/12 06:00 PM

Quote:

Quote:

The good coatings are only good for about .0005" on each side.

http://www.swaintech.com/store.asp?pid=10964

Quote:

PC-9� is commonly used to salvage a motor that has excessive piston to wall clearance. Vintage motors and other applications with hard to find pistons can
have up to .004� of PC-9� added to the diameter of a piston to tighten piston to
wall clearance.

Jeepmon said:
"When I looked into having my pistons coated.. I think the coating is good for .002 per side which will only be .004 total... and there's nothing to prevent the coating from scratching off.. "
__________
Sounds fine for a restoration, but do you really want to add that much thickness in a performance application? Doesn't sound like you're that convinced that it's the way to go. When I said "Good coatings" I intended it to mean a high performance app. Maybe should have made that more clear.

Posted By: Jeepmon

Re: Need B-1 orginal pistons - 01/12/12 06:14 PM

Quote:

Sounds fine for a restoration, but do you really want to add that much thickness in a performance application? Doesn't sound like you're that convinced that it's the way to go. When I said "Good coatings" I intended it to mean a high performance app. Maybe should have made that more clear.

You're probably right...!! I'm the first one to admit I dont know enough about building motors... or race motors to state any facts.. I was just passing along information I found elsewhere..