hatchblack

what do you guys think? ive got a gsr

i need 81.5mm pistons. i have oversized ctr pistons but i need bigger ones

pistons are gonna cost just as much if not more

of course the ls block will call for way more compression though

diggity dave

dont really understand what your asking?

hatchblack

im either going to look for a ls block bc it could be cheaper and just use the pistons i have rather than spending another 500 on pistons

although the position im in... itd be great to find a b20 block

im kinda also posting to possibly also see if anyone has one

Jarrod

Use those CTR pistons...



Seriously, research this.

Sell the CTR pistons to some idiot and run a lower compression piston.

hatchblack

wait. you say use them and then say sell them?

i have 81.25mm ctr pistons. i need 81.5mm for my gsr block. wouldnt mind more from a different block

i dont see what you are saying

RPRacing

best answer is going to be buy an LS block for around $100 and an LS vtec kit for another $100-150. you have the pistons already and you'd already have to buy a new headgasket.

or you can spend a little bit and buy some topline or wiseco pistons in 81.5mm or even 82mm and run the GSR block keeping your internal oil line, girdle, and oil cooler.

what would I do? If knew the compression of the CTR pistons was what I wanted, I'd go find an LS donor block.

hatchblack

the only way i can use the ctr pistons is if i find a ls block

but if i can also find a b20 block i wouldnt mind buying pistons for it

so i buy bigger pistons for my gsr motor or get a ls block and use the ctr

RPRacing

correct. I'd say find a b20 if you can.

hatchblack

i need to do something quick tho! im dying with my piece of garbage motor when i have a motor waiting to be rebuilt again

RPRacing

I might know of some 81.5mm ITR pistons