Don Terrill’s Speed-Talk

Does any one drill direct holes or slot upper bearing to feed more oil to the thrust?
Just had this happen to a 5.7 aluminium block LS after about 1000miles of abuse....if it was an assembly error I would thought it should hurt thrust on first chassis dyno session

You cannot compare a limited rule Super Stock class engine to a fully developed, high-budget NASCAR engine. One of the few that has spent most of his career in NASCAR, but also understands Stock and Super Stock Class Eliminator engines is Warpspeed (Jay), and I do not see him spouting ignorance. Se...

Hello RDY4WAR, I did some research on the Mobil 1 0-30 and 0-50 WT. Synthetic Track use only oils to partially compare to comparison chart you posted. Both of the fore mentioned oils have 1940 of Zinc and 1770 of Phosphorus. Kinematic Visc. @ 100 cel. 10.8 and 19.5. , Shear Visc. @ 150 Cel. appx. 3...

Victor E would be perfect for this

So pissed of edelbrock stopped doing them
With some plenum work they make awesome power

It just seems to me you manage harmonics with the cam derivatives, springs, and maybe pushrod shape, but a lever should always be as stiff as possible. The forgotten effect of aluminium is the higher inherent damping which also helps with harmonics. I have heard whispers that some people have chang...

I have been using penngrade Nitro 70W for many years
No issues. I agree solid grease could cause issues

What actually causes to nose of flat tappets to wear like that early in their life?
Is it oil quality or lubrication break down
Or spring pressure related

I’m going to dyno a 400 chev next week. I always cut the top of runners back and grind out the bumps
These combos make about 625hp on pump gas
I might start with a stock 2925 and baseline dyno engine
Then remove intake and do plenum mods and dyno test on same day..

An .036” IDle jets is enough for a 1050 dominator

As other experienced guys on here have said
Get it down to .028”-.030”. And then tune with
Air bleed
This will make a huge difference

Start a thread on this subject please. I just built one that has a small oil leak, and the RMS is about the only place I havent really looked real good at. Is this a common thing with the SHP? I did start a thread on this a few months ago and got not many replies I have tried felpro brown and blue....

Anyone having trouble with Dart SHP 2 piece. Blocks with rear main leaks? I have tried ever seal I can find and still have leaks Start a thread on this subject please. I just built one that has a small oil leak, and the RMS is about the only place I havent really looked real good at. Is this a comm...

Anyone having trouble with Dart SHP 2 piece. Blocks with rear main leaks?
I have tried ever seal I can find and still have leaks

RTR-1 wrote: ↑Sat Oct 22, 2022 2:36 pm Are you having problems with 350 or 400 main blocks? Or both?

I pretty much only build 350 main blocks

If this is a more recent factor, is there something wrong with the SHP block & rear main cap? I don't really like the idea of a 50% chance of leaking oil, even when installed correctly. I feel that the SHP cap has less slot area than a stock chev oem cap and could possibly be holding up too muc...

What rear main seals is everyone using and what is your install procedure I have been building sbc for over 20 years and never has problems no matter what seals I ran Now days I pretty much only build dart block engines and mostly shp Last few years I have 1 out of 2 leak on dyno I have tried ever s...