Ok, I know that the b18c 94-97 'gsr' complete changeover from H-motors is a b18c sir-g. What, if any, are the key differences in these engines other than thier country of manufacture and the different compression ratios from usdm to jdm. I plan on turbo, hondata, lots of other goodies, but I want to make sure all my planning and parts lists will work for this engine. Lots of GSR aftermarket parts already here--should I get this engine, or should I look for a usdm gsr?

 

SiR-g is automatic no?

 

sir-g = jdm gsr

if you'll be tearing the engine apart and replacing stuff there's no reason to spend more for the jdm engine.

 

Thanks for the help...Just curious, how do you tell the difference between the two by looking at a picture...I can't tell...I guess it's something small and specific...What is it? (you can name the part, I'll know what you're talking about--One other thing...the cheapest usdm gsr swap kit, (sohfast.com) is about 900 more than the hmotors jdm gsr even with LSD. not to mention you pay more for a usdm swap the lower the miles are. Lowest mileage on a usdm gsr swap I've found was 80k +.If anyone knows where to find a usdm gsr swap that's cheaper/more reliable than what I would get from hmotors, please, let me know.

 

cant tell just by looking at a pic unless the pic is a close up of the engine stamp and model stamp on the head.

 

thanks. How about a usdm gsr complete change over for cheaper than the jdm gsr from h motors that doesn't have 80k miles plus? sohfast.com is the only usdm specialist that I've found.

 

so see the differance look at the stamp on the tranny housing, b18c = JDM GSR, b18c1 = USDM GSR. If the jdm gsr is cheaper and has less miles and has a lsd then why the hells not ? The JDM one makes about 10 more power anyway. If you are tearing it down usdm VS JDM is really not an issue. even if you werent rebuilding it I wouldnt wory, I dont think ive ever seen GSr aftermarket parts usdm or JDM specific, they're really the same engine except for slightly higher comp pistons, and maybe a few other very very small insignificant things. I just got a JDM gsr from hmotors with 37K miles with LSD for 3300 shipped. Bottom line is to go JDM, its cheaper and a better engine.