Re: B18C rods and pistons into LS
 

It is much easier to remove material from something than it is to add it.

LS, B16, and B17 rods are all wider than the B18C rods by about 0.040" Too much side clearance == no oil control and dead bearings in no time flat.

Re: B18C rods and pistons into LS
 

Didn´t remove the GSR pistons and rods from the LS block and install a B16 head, now the engine have no problems, pistons didn´t hit the head, love when vtec engages, all works perfect.

Right now i am driving the car and feels ok, also make a compression test with this results

Piston 1 -- 170
Piston 2 -- 177
Piston 3 -- 170
Piston 4 -- 170

Let´s see the car how it feels on the track

Re: B18C rods and pistons into LS
 

thats some weak compression numbers... hope the compression ratio is 8.5:1...

Re: B18C rods and pistons into LS
 

Good for turbo?

Re: B18C rods and pistons into LS
 

Was the motor warm or cold, and was the TB open while testing the compression?
I have 185 across on my LS motor was a just tiny bit warm, because I waited (testing my bros car) for 45mins after running it.
Now his compression came out to 135 across an a brand new 2.2L B18c1. Rings weren't sealing yet.

Re: B18C rods and pistons into LS
 

Tested after more than 1 hour of use with warm engine and close TB