i have a spare ls block with ares 13.1 compression and a spare bone stock ls head just wondering if i could combine these without the valve hitting the high compression pistons i know it woudnt run right without a tune but thats not the issue?

 

I highly doubt it would even start..

 

if you have doubts...clay the motor and check valve clearances. I'm with ^^^ though doubt it would even start

 

Ok if your talking about Arias Pistons there sit shows all there pistons with Stock heads.

So by there site the B18A1/B1 block with your choice of head

LS 45.0cc | B16A 42.7cc | GSR 41.6cc
13.2 Comp| 13.9 Comp | 14.2 Comp
so unless the block was decked as far as it can be and the head hasn't been shaved to it's max it should fit fine but i would get bigger injectors and run 55PSI on the FPR till you get it tuned.

 

i c i just need another daily since my other one was riped apart so i can finish the brake and wire tuck... also i minght add the block is 81.5 so i would have to match the head to block bore? im kinda new ot building b series did a few d series but yea... what size injectors would u prefer i have some 440 cc laying around from a sohc build

thanks all the help is needed

 

440 should be good. the stock 240 cc with the FPR set to 55 will work as well but you will be pushing them hard.

stock bore is 81.00 mm and the .5 mm over bore is No concern with a Stock head

 

i put it in today and the car didnt wanna start, but in order for it to start i needed ot put the ignition on like 4 times then off then on so the fuel pump will put more gas in it... ima put a fpr and the 440s in tomarrow and maybe get a walbro 255?

 

make sure you have Good gas and that it's 91+ Octane or it's going to have a tone of spark knock.

 

we have 93 here