Stroker rebuild

Pete · Post by **Pete** » Wed May 07, 14 6:07 pm

DaveBishop wrote:Yep you are right Les forgot that must be getting old

According to our phone conversation today, you are already old!!!

But you know a lot more about Small Blocks than I do!

DaveBishop · Post by **DaveBishop** » Wed May 07, 14 6:31 pm

Cheers mate. Bet I can beat you in a 100 yards race.
Hope your back gets better

Pete · Post by **Pete** » Wed May 07, 14 6:39 pm

Very Cruel!!!!

completely kippered at the moment.............

Post by **TyreFryer** » Fri May 09, 14 10:46 am

Carl, did you see Paul's got a 340 that could be available, if your block's scuppered?

http://www.moparuk.com/forums/viewtopic ... highlight=

Carl · Post by **Carl** » Mon May 12, 14 10:07 am

Yes I did thanks Martin, but I think Paul wants to sell as a complete engine.

Carl · Post by **Carl** » Mon May 12, 14 10:16 am

I have some figures

Bore = 4.100.5 = +60 over

Piston = 4.095.5

Rings on there = 4.250 I assume this is what +60 rings come as?

Pete · Post by **Pete** » Mon May 12, 14 10:36 am

Are ALL the Bores and ALL the Pistons the same size?

Have you / they checked to see if the bores are tapered through wear?

Pete · Post by **Pete** » Mon May 12, 14 10:42 am

If I have read your data correctly, you are saying there is only 1 THOU clearance between Bore and Piston?

Have I got that right????

No wonder there were signs of over-heating if that is the case - I think you need 3.5 THOU clearance on most US pistons as they are "Barrel-shaped"??

Maybe a BIG Hone will get you out of trouble if all the Bores and pistons come up that size????

Post by **TyreFryer** » Mon May 12, 14 11:06 am

4.1005" - 4.0955" = .005" (5 thou) or am I missing something Pete?

Pete · Post by **Pete** » Mon May 12, 14 11:13 am

TyreFryer wrote:4.1005" - 4.0955" = .005" (5 thou) or am I missing something Pete?

I DID wonder, which is why I put the data into Excel - I do not trust my own mathematical abilities!!!!!

It came up with 1 thou.

5 Thou is the wrong answer from Carl's point of view..........

Carl · Post by **Carl** » Mon May 12, 14 11:24 am

All pistons and bores came up the same.

I took those bore x piston figures as 5 thou too

Post by **TyreFryer** » Mon May 12, 14 11:30 am

Don't forget to divide it by two as that's the diameter you're measuring, so you'll have .0025" clearance between piston and bore.

Pete · Post by **Pete** » Mon May 12, 14 11:30 am

My old mate always said about air-cooled Moto Guzzi's "If it rattles then it's a good 'en!"

Sadly, this may also apply to you.....not the end of the world....having the correct VTP clearance will be a benefit.

Look at it this way - were you concerned about excessive engine mechanical noise BEFORE your fateful run at the 'Pod?

Carl · Post by **Carl** » Mon May 12, 14 11:31 am

1 thou = 0.001" therefore .005 has got to be 5 thou

Pete · Post by **Pete** » Mon May 12, 14 11:32 am

TyreFryer wrote:Don't forget to divide it by two as that's the diameter you're measuring, so you'll have .0025" clearance between piston and bore.

DoH!!!

I'm clearly going soft in the head!!!!

Well in, then!!!!

Tight even.......