Don Terrill’s Speed-Talk

Looking for any posts about the trend of using thinner oil in a race motor vs the standard old 20w50. Cant find anything.

Had a motor blow this week after the second place car hit us and spun car, did a 180, then rolled backwards for 100 ft or so with a direct drive transmission. Car did fire up, then blew a lap later. Question is: did the motor spinning in the opposite direction have everything and/or nothing to do wi...

Is that hydr roller?

It’s been along time since I’ve had a Street motor that wasn’t an LS. I built a 355 with a 488 lift thst was a dog 20 years ago, and currently have 6.0 in my truck with a 617 lift
Cam with great low end power. Can that be accomplished on a small block Chevy ?

Building a 9.5:1 sbc 406, afr 220 heads, edelbrock dual plane intake, 1-3/4 headers, 750 holley, in a street el camino, (no racing just street bashing) I want to get the most driveability and still have good horse power. Will limit it to 6,000 rpms (so it lasts longer) Question: how much cam can i u...

Also , when would the +.050 be used?

bobalattie wrote: ↑Wed Mar 07, 2018 9:44 pm +.050 will increase installed height..


You need -.050 to reduce installed height and increase seat pressure

Ok that’s the way I understood it but wanted to be sure. It wasn’t really stated where the .050 was being applied.

That’s also part of my question. Machinist said he didn’t like to use shims. They’ve been in a lot of other motors I’ve had with no issues.
I did have a buddy who’s motor had pieces of his shims all over in the pan. The shims broke along the little lines stamped in them. Not sure on what brand.

My machinist says my heads need shims under the valve springs. He said special locks that have the shim built into them are available. (11/32” Ferrea radial groove/beadlock) I’m trying to find them and having trouble. 1.250” springs. I see most locks say +.050 but what does that mean. I need it to p...

Ok now, good cam , which heads?
Afr 220’s
World 200’s

Mike, can you email me a price for the Cam /lifters from you.
Also is it possible to do a flat tappet Cam (non roller)

With matching size eyebrow pistons, can I safely get to .550 lift with 2.02 valves?
Or does this type of Cam ramp up the speeds so interference is Less likely

One of my small cams..!

Possibly even a little lower rpm to get decent drive ability at Part throttle at 55mph and around 2000 rpm

Tried editing post but that didn’t work. I have a set of aluminum afr 220’s and a set of iron world products 200 cc runner(and a set of dart 165’s but ick) Basically I’m looking for some advice as to what is possible as I’ve not worked with these new setups. I remember years ago I used a .488 lift C...