Guy-Fast

Anyone know if they are like the usdm motors and have the 55mm mains in them has the h22a4 motors do here.

NIGn0g

Ask to chris!

widebody93

i remember reading something to where the 97 had the 50mm like the Jdm motors and the H23A and the 96 98 99 2000 had the 55s in them. Or it the opposite. I have it saved on file at home. But im at work right now. Ill get back with ya

bigdaddyvtec

obd2 H22a4 motors have 55mm mains (97 up).

I believe JDM motors share the exact same as the obd1 h22a1 (50mm). I think also that the H23 blocks are 5omm as well if i remember correctly.

Actually All F22 motors, H22A (JDM), H22A1 and the H23 are all 50mm. The only 55mm mains are on the H22a4 (OBD2)

widebody93

Thanks, I almost had it right. Last time I read that file was almost 2 years ago.

98vtec

92-97 h22a have 50mm mains

some 98 motors produced in 97 have 50mm mains

the other 98's-01 have 55mm mains.

bigdaddy got the rest