will type r pistons work and rise my CR in my ls non vtec motor , or do i have to get a vtec headto put type r pistons in ?????? any one , ?????

 

some one please ?? i whant to knoe , so i can buy them or not ?

 

It will work, but you will have a hard time feeding it. The ports and valves are smaller on the Ls head.

 

Feeding it ?? so wit will be a waste of time buying them and puting them it , it wont give me no gain , or nothing my boy is giveing me a set of itr but i just have a non vtec ls motor and i was told you have to get vtec head to run itr pistons, true or false???

 

why dont you do the math and see if it will fit, people change the pistons in the LS all the time. the valve reliefs may be different with the LS head and the actual valve placement on the pistons at TDC... this could create critical clearance issues. bear in mind you have 2 more mm of stroke on the LS and this may prove to be true. why dont you just talk to someone who builds LS VTEC that could actually advise you instead of slapping a motor together that is destined to break

 

It will fit, but you'll need to modify the con rod slightly.

 

It will fit fine but as project x mentioned, you will have to get the rods modified slightly. Any machine shop should be able to do it. My brother's ls has ctr (pct) pistons in it and it runs great. The ctr piston has a way bigger dome than the itr and we didnt have any clearance issues.

 

WRONG , its not a B16 where you have to mod the rod

YES they work..........
in a LS/VTEC you will have good compression numbers.

 

ITR and CTR pistons will not fit on an unmodified LS rod. The small end of the rod is too wide. Minor machining is required, no big deal, just a small amount of material taken out of the small end of the rods to allow the pistons to fit. I ran ITR pistons for a while, then decided to up compression with CTR pistons. This is on a 97 LS block with a B16 head.
Upping compression is a good way to pick up power, but you need cams, head porting, intake and exhaust, a good fuel management system to take advantage of higher compression. Then of course you need time on a dyno to tune the engine. It's also a good idea to "clay" the motor to check piston to valve clearance whenever you up the compression or install bigger cams. You can make power with an LS head, but a VTEC head flows better; that is one reason that the LS/VTEC is so popular. Good luck, whichever way you go.