Don Terrill’s Speed-Talk

The cam card is odd and precise. I would check that cam with a wheel for sure. I assume it was a custom grind? Close to a Crane F-278-2 solid flat tappet but just a bit more exhaust timing. Cast iron exhaust manifolds maybe? I have an old Isky cam with rounded up valve timing numbers on the card. I...

Just guesstimating, but Comp may have paired non-symmetrical intake and exhaust lobes from different design families that have different offsets from seat timing to .050" timing, in order to achieve your requested specs. I wouldn't panic. The lobes are from different design families. The intak...

On my previous CompCams I just never seen them put the exact precise degrees on my cam cards.

You all are correct in saying that it's in acceptable tolerance and is nothing to worry about.

Hello. I ordered and received my camshaft from Comp. I gave them these specs: 239 intake @ .050 254 exhaust @ .050 114 lobe separation 110 intake centerline Which should work out to: ivo 9.5 Ivc 49.5 evo 65 evc 9 However my cam card valve timing @ .050 read: ivo 9.5 ivc 49.5 evo 64.9 evc 9.1 Which w...

Question. Some OEM engines came factory with forged steel crankshafts such all of Mopar SRT8 engines (6.1, 6.4, and 6.2) and GM LSA, LS7 and a few others i believe. Are they nitrided as well from the foundry? They seem hold up very well even over 1000 horsepower. Thanks in advance!

BTW my valvetrain and camshaft in question is a hydraulic roller. Thanks in advance.

A guy is selling a camshaft that was in his old combination for $275. It's 243/249 658/658" 110.5/106.5 IVO 15 IVC 48 EVO 59 EVC 10 I'm going to have a low budget 371 G Hemi assembled with 12.5:1 compression. I have cnc ported 6.1 heads with 2.08 in and 1.65 ex valves. Flow numbers are: .100 73...

NICE. Thanks for your reply!

Have any of you all used or heard of anyone using the Scat Ulta Q Lite rods 2-350-6125-1888? If so what power level? What are your overall impression them? I'm building a 371 - 12.25:1 G3 Hemi with an forged offset crankshaft with the 1.889 journal size. Thanks in advance.

Are you all for the most part going with .005 to .010 i.d. radial clearance of the locator from the valve guide? I'm upgrading my springs and noticed that my i.d of my locators were .030" larger than my guides.

I've searched and read several posts stating that going to a smaller diameter tailpipe over the rear axle (for cars with live axles) will quiet it down quite a bit. I have a Chrysler 300c that should put down 450whp with a 3 inch exhaust. It has a x-pipe and 20" case length dynomax ultraflow mu...

http://www.dragzine.com/news/video-gary ... -22-blast/

I know..I know, the next goal post change will be the cost. Right?

http://board.moparts.org/ubbthreads/ubb ... -make.html

815hp 11.5:1 compression pump gas 438 Hemi. Outside of the 4 valve stuff, Hemi design especially the newer G3 Hemi heads are the best oem heads.

Sticking with the criteria that you have to use 90% of the oem main components, actually todays small blocks are really good and hold their own. The 427 LS7 can be competitive. Especially the 6.4 392 Hemi. They arguably have the best cylinder heads ever offered in a oem small block reaching 400 cfm ...