97stanger

stock valves fred?

zero2005

IIRC all MHS cams are good w/ stock valves & springs up to stage 2. i'm running stage 2 turbo cams with the "stock mod" valves (well, 7 out of the 8 are, 1 is a completely stock valve) which are just stock valves ground down a tad, and there was 0 issues.

i think stage 2.5's & 3's are where you need either notches or modified valves or both...

97stanger

^got ya, well theres some good info for ya rockwell if you decide to go MHS. I'm sure Nick wouldnt mind explaining everything as well. Whatever you do and read on here, DO NOT buy CMS stage 3s without notched pistons lol. I read all over the internet that you dont need notched pistons or valves, so I didnt do either. When trying to degree them I couldnt even turn the motor over because of PTV contact. I stepped down to the 2's and wala.

lizzyfan

Yep, intake valve is ground down for more clearance

Rockwell28

Good deal I see some great info being laid out here and i was planning on the mhs 1 to begin with after I get intercooled but someone approached me on another forum when he found out i was looking into blower cams its a long story but its like a 99% chance it will be the mhs stage 1 blower cams that I will be going with in the future. Thank all of you guys for all of the info laid out in here so far.

97stanger

yeah, I thought modified valves were required for his stage 2's.

Not a problem, lots of guys on these forums are informative and have been in your shoes before. Keep us posted!

zero2005

IIRC they are not required, just helps clearance so there's less of a chance to run into PTV clearance problems, and i think they flow slightly better too. as i said, i'm running 7 out of the 8 as nicks "stock-mod" valves, and 1 is a completely stock valve. 1 got bent, so i just swapped a stock in its place, i called him before i did so and he said it was perfectly fine to do so.

97stanger

I really should have gotten my pistons notched, the cms 3's sound so bad ***