Don Terrill’s Speed-Talk

alotofdust , not sure of the press needed because you are trying to use aluminum on steel , steel on steel would be approx .0004 - .0006 , that is my opinion on the press needed.

I would machine the pulley to use a set screw , with a little flat on the pump shaft. JMO

I don't understand what I am looking at , both pistons look like flat tops to me , but I would run the shorter lighter piston in the picture with the shorter wrist pin , not sure where the 7cc's are comming from. Maybe I am missing something in the pictures.

I believe they are Icon pistons, at least that is what it looks like to me. No idea on the history...I was fixing a completely different issue when I found this. It is a standard bore and I think it will clean up, but it may take a .060 overbore to get there. The guy who supposedly built the engine...

steve , you have mail.

vht wrote: ↑Sat Oct 07, 2023 3:03 pm What about Ohio Crankshaft rotating assy? Just curious, I've never seen anyone around here use them. Their prices aren't to bad.

vht , I have used a few Ohio crankshafts and they seem to be machined and sized "decent" , they are a little heavy in weight , sbc approx 53-54 lbs.

I also do the same as steve cowan and 1980RS with stones, it takes time but my valve jobs and their's are sealed and that is where some great power gains can be made. I only lap a valve to see where my valve seat is in relation to the diameter of the valve margin , but I check every head. It's just ...

My opinion is the valve job if done with cutters , was never centered. It also looks like the valve guide pilot was not square / level / perpendicular to the valve machine. I find guides all over the place especially GM Votech's . The valve job looked pretty good as delivered. As I mentioned new gu...

Skip White in his long description of his products says to always check and resize any brand of rod. He has an option in there to do it for you. He has options to polish the crank and also a RACE balance. Ok the assy is supposed to be balanced, even tells what machine they do it on, so what the cra...

My opinion is the valve job if done with cutters , was never centered. It also looks like the valve guide pilot was not square / level / perpendicular to the valve machine. I find guides all over the place especially GM Votech's .

As for Eagle SIR rods for sbc: I KNOW this because I witnessed it. Builder did Not check Eagle's work and it bit him hard. Big ends apparently Not torqued to spec when honed to size at Eagle (Not "really" Round). Builder assumed as new it must be good (Wrong). When assembled & torqued...

I wanted the camshaft timming program to play with , so I downloaded the cheapest version for $29.95 , played with it for approx 5 minutes and it seemed to work perfectly , I did not try any other parts of the program , but it seems like a decent program to play with , can not tell how accurate the ...

Dave , you have mail.

Dave , you have mail.

Some times less expensive programming can provide many valuable calculations , the screen shots are impressive outputs , it would be interesting to hear from someone who has used the program.