H22a1 VS H22a4
 

Hey I've been trying to find out, but I can't seem to get much info!

what are the differences between the H22a1 head from a 4th gen prelude (92-96) and the H22a4 Head off the 5th gen prelude (97+)

Re: H22a1 VS H22a4
 

None worth mentioning.

Re: H22a1 VS H22a4
 

some h22a1 and h23a1 came with solid decks in'92-93 I have h23a1 in my garage.

Re: H22a1 VS H22a4
 

He asked about heads... Not blocks....

Re: H22a1 VS H22a4
 

newer=blue cams

Re: H22a1 VS H22a4
 

So are you saying that fundamentally there are no differences?, and that they just decided to put the "a4" suffix instead of the "a1" suffix? :S :S

Re: H22a1 VS H22a4
 

one difference is the way the LMA's (lost motion assemblies) are made. From what I've read on Honda-tech...i know i know.....the ones from the a4 are thought to be a little better....I honestly can't say yes or no.

Also from what a buddy of mine with somewhat of a hybrid h22 in his hatch tells me..the a4 head runs a little quieter.

Other than that, castings are the same...

Re: H22a1 VS H22a4
 

yeah for a different chassis. think about it b18a1/b1 not much of a difference except for the suffix. different years is about the only difference worth mentioning

Re: H22a1 VS H22a4
 

Re: H22a1 VS H22a4
 

WRONG.