ok here is the thing i already know that you can fit a k20A into the Si from a type s what i need to know is if you can just replace parts on the existing Si Motor to make it into a type s motor... i don't know if 5-6 g's on an engine swap like that would be a smart investment. especially if i find out later that it can be done for way less. please if you have any info help me out...

 

aren't k series engines interchangeable....just drop it in place of the a3

 

a lot of people have gone the route of exchanging their a3 head for the a2 head. it's only about a good grand to do this, but there's more. the a3 is also missing a counterbalanced crankshaft and oil squirters. the list isn't really that much longer, but you can hit up clubrsx.com and browse the forums there. they'll give you much more feedback.

the benefits include the lower compression, which allows for more torque, or better boosting if you want to go that route. good luck man

 

THanks alot you were very helpful.