the length will be determined by your engine stand. mine are 3", you want about 3/4" or so sticking into the motor and you probably want a washer on the head side of that bolt.

you dont need grade 8, the ones i have are not rated at all and i have had a motor siting on this stand for over a year. if you want get some grade 2 or whatever the lowest actual rated "grade" is.

i dont know the diameter or thread count but it is the same as the accesory holes in the front of the heads and you should be able to get to one of those.

 

We talked for awhile and he said he knew I had a Radix and has installed many of them on Vettes/Hummers/Tahoes etc...He said he talked to Roger Vinci about the cam choice prior to me buying it and he said it would be better for me because they blower was gonna put me in the cams power band right off the start. He didn't think the -10 and bleed off were gonna be an issue. He said something about using figures that are from the .040 and not .050 lift making the overlap seem worse than it is. I dunno, but he said this cam will work great, and his Dad thought so as well. The Ultra TQ is the same other than LSA 116 v. 112 and Overlap 48 v. 52. We'll see how it works out in a few weeks. I think I have a bead on an engine. Know for sure Saturday

 

Cool, goodluck then.

 

Oh yeah. An unmarked metric bolt is usually no less than grade8, different system than american(standard) where an unmarked bolt would = grade3.

If they are 10mm bolts they will probably be 1.5 pitch, and if they are 12mm bolts they will probably be 1.75 pitch, no gaurantees, just what I've noticed

 

i did not know that but i can tell ya i went to westlake hardware store and got the cheap one's

 

for metric hardware that is usually just fine.

 

My Meth is running 1 litre/min! at that rate it is almost drinking it at a slow chug. That is until i can figure out the IC piping. Ive actually been up to 15 lbs. At that boost level you really have to run the scanner all the time to monitor IAT's.

 

The difference in using 212-218 114lsa cam was that I had to drop 1/8 in pulley size to get the same boost.

 

I've heard of many people using the 2.75 pulley with no problems. From what I understand it does spin the out of the blower though. BlownChevy figured on an LQ4 and my cam a 3.0-3.1 pulley should get me 6#'s. If I really want to move it up I will try the 2.75 sitting in my garage

 

We've had 1slow01z71's 6.0 & 5.3 on the stand with 3/8-16 standard bolts. I figured they would be metric. They may be metrick but the 3/8-16 threads into the block perfectly.