Don Terrill’s Speed-Talk

When I had and used an Edelbrock RPM Air Gap I did my best to measure average CSA and came up with around 2.40 sq.in. . This was using snap gauges and digital calipers at multiple places in the runners. the runner lengths were in the same ballpark as many of the up swept single planes [ super victor...

F13 adv.dur. 300 267@.050 176@.200 .382 lobe lift .650 1.7 rocker
F12 adv.dur. 308 275@.050 184@.200 .393 lobe lift .669 1.7 rocker

Skinny Z , Crower also uses a machine screw and button set up on Many of their solid rollers I have seen. Just noticed that Comp used a machine screw set up on their sbc T slot removable tie lifter also. Dan

greenhj wrote: ↑Thu Feb 02, 2023 4:55 am I didn't bother looking at any of the threads but there were a surprising number of views to some of them

you have to view the post so you can report it. don't click lnks or comment on posts.

Ya, I'd love to find a way to remove the rivet and replace it with some kind of bolt and button like Isky solids with the removable tie bar. Dan Do you have a P/N for that Isky solid tie-bar lifter? Its a big block lifter with a captured tie bar but 376RHM937 if you take a look at the allen head sc...

I do know that they can't be taken apart. The lug that holds the link bar is in the way and won't let the pushrod plunger come out. That part pisses me off to no end. I've got an entirely serviceable set of COMP short travel lifters with steel bodies that I can't personally rebuild. And COMP is no ...

9" is the widest tire allowed in Stock eliminator. 30 is about the tallest that will fit in stock wellhouse openings with some legal trimming.

IMHO, you should be good to go at that installed height. after it all together roll it over with a dial indicator on the retainer to double check max lift with lash and deflection. Dan

Distance from valve spring pocket to underside of spring retainer on the Intake is 1.820. Exhaust is 1.780. Spring locator is .060 (thinner locators appear to be uncommon). Installed height of spring is 1.750. If I leave everything as-is, the installed height for the exhaust will be .030 less than ...

Blackford, so what is the difference between the intake installed height and the exhaust installed height. what is the installed height you need for the springs you are installing and how close is that to the minimum height by the spring manufacture. The thicker margin on the exhaust valve is not a...

Blackford, so what is the difference between the intake installed height and the exhaust installed height. what is the installed height you need for the springs you are installing and how close is that to the minimum height by the spring manufacture. The thicker margin on the exhaust valve is not a ...

Thank You, BillK

I just checked a set I have here for a balance job and it appears to be the piston weight only. Catalog says 447 and I have 439 plus 117 for the pin. So even the piston weight is not exactly the same. Bil , Since you have some Mahle pistons right there balancing.. What is the difference in ring set...

Thanks Bill
If that is the case, then it appears the Mahles are real "slugs" compared to other pistons of the same dimensional specs. Dan

I'm looking to buy a set of pistons for my next build project. Going thru the Mahle catalog and the pistons I want to use are listed at 496 grams. Does that include the wrist pin . I ask because a few years ago I build an engine using Wiseco ProTru pistons of the same bore, dome and comp. height spe...