LS-S10

I am new to This forum and new to LS engines Here is what I am doing I have a LQ9 motor I have port matched 317 heads victor Jr intake BG carb MSD 6010 box a Speed Inc s16 cam specs 235 240 .621 .609 111 I am wanting to cut the heads down about .030 to raise the comp a little am I going to have to fly cut the pistons to do this setup or should i just leave the heads the way they are. Thanks I need all the info I can get

PREDATOR-Z

Yes...

cutlass_455

iTrader: (2)

x2....

LS-S10

would it be cheaper to get new pistons already with reliefs already cut or just get the ones i have done and how do you fly cut the pistons and also dont you have to get the rotating asm reballanced

A.R. Shale Targa

iTrader: (2)

The few grams of piston weight won't change the balance enough since the
factory balance jobs aren't extremely accurate. The tool you need is called
a lindy (sp) and I think CHRIS1313 has them to rent. It looks like a valve but
with cutting edges on the face...I've never done it but others seem to say
it's no big deal. Right on with milling the heads to bump the compression to
around 10.5-10.6 which that cam will like. Make certain to get the right size
pushrods for quiet lifter preload and consider rocker arm trunion upgrade

LS-S10

I am just going to buy the tool I know the valves are 2.00int and 1.55exh any idea what the valve stem size is so I can order the tool Thanks. also is there anywhere to buy a solid lifter so I can get the actual PTV clearances I only need one lifter

outkast6991

iTrader: (34)

8mm stems i believe

chrs1313

iTrader: (24)

8mm stems should run around 210 shipped for a set...also I would recommend telling him that you want cutters for a bigger valve incase you ever move up in size heads...so you don't have to get another set...

Chris

LS-S10

thanks I will be ordering them friday