i have a b18c1 block and a b16 head was given to me, but the thing was that it was already miiled .050. i have the head on the block and its put together , and the valves clear. i installed gsr springs and gsr cams and i can take the motor up too 8500 with out the valves slapping.

now my question is how big of a cam can i go? has anyone done the same thing i did. i know milling too much is not a smart thing to do, but i need to know if anyone has been brave enough to cam a motor with a valve and piston tolerance this little?

thanks.


Modified by jyang67 at 10:32 AM 4/30/2008


Modified by jyang67 at 11:41 PM 4/30/2008

 

You will have to check p to v clearance with whatever cam you select.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jyang67 &raquo;</TD></TR><TR><TD CLASS="quote">i have a b18c1 block and a b16 head was given to me, but the thing was that it was already miiled .050. i have the head on the block put together., and the valves clear. i installed gsr springs and gsr cams and i can take the motor up too 8500 with out the valves slapping.

now my question is how big of a cam can i go? has anyone done the same thing i did. i now milling too much is not a smart thing to do, but i need to know if anyone has been brave enough to cam a motor with a valve and piston tolerance this little?

thanks.</TD></TR></TABLE>

as said already you will have to check P2V with whatever cams you get. i ran an H22 Milled .050 with Skunk2 stage 2's and revving to 9000 it hit and bent all valves....! but they were just slapped in without degreeing or anything.

i also ran crower 3's in an H22 milled .050 with no problems.

i also ran several single cams Milled to death!! honestly this was way back in 96-97 and i got the motors for like 50 bucks.. took the valves out of the head and told the machine shop to mill it down as far as it would go.. when i put the valves back in they stuck out slightly. ran that with a mild cam and stock valvetrain.. revving to 8000 on a single cam..

milling adds compression but when running cams and such its not worth it... you can get a thicker headgasket to compensate for the amount milled.

 

My head was mille .015" and block was decked 0.040" so total 0.055" My v2p clearance were **** w/ BC3 cams, so I had to run a .07" thick HG to get safe v2p clearances.