I never said it had anything to do with the Bottom end...If I did POST IT....I ask you a Question....You say The B16a is the same as the ITR Its not, thats my Point HERE...There are differences...And Why do you guys get so affended if someone post any info or questions ?... I try not to post BUT sometimes I get tired of people claiming they know everything...We learn something new everyday.....By the way on the Pic you can see enough to know what the differences are...
This was copied from the same page as the Pic...In my notes..
On ITR, the inlet ports are manually ported to increase air-flow. The exhaust ports are identical to B16A. ITR intake valve seats are at a different angle to B16A, 45 degrees vs 60 degrees. The intake valves are also different, being lighter and having a thinner valve stem....
Oh and for the valve stem you would then improve oil flow...In that area...Thats what I was getting at..
