Type S cylinder head code

CrankmasterII · Post by **CrankmasterII** » Thu Jun 20, 2013 9:33 pm

Can anyone tell me the code on the head of a Type S engine
I have a type S with bottom end gone but I think it is a different head on it
Not at the car till weekend but what I can recall it say P13 HF-1

Thanks
Willie

mercutio · Post by **mercutio** » Thu Jun 20, 2013 9:34 pm

I think the type s has a pde code on it if I recall

Post by **4thgenphil** » Thu Jun 20, 2013 9:35 pm

mercutio wrote:I think the type s has a pde code on it if I recall

pretty sure its not, pde heads have a different valave angle

i'm 99% sure its a p5m head

Post by **Merlin** » Thu Jun 20, 2013 9:41 pm

Doesn't the "S" & S-SPEC say P5M?

P13 is all other Ludes and PDE is the H22a7 ATR?

mercutio · Post by **mercutio** » Thu Jun 20, 2013 9:42 pm

there we go I knew someone would come along

Post by **4thgenphil** » Thu Jun 20, 2013 9:43 pm

Post by **Merlin** » Thu Jun 20, 2013 9:45 pm

Found what I was after:

Buzzonion Vtec wrote:
H22a8 = P13 head same as JDM H22a, a2 and a5
H22a7 = PDE head
H22a (S-spec) = P5P head

H22a7 and H22a8 share the same bottom end - 55mm mains cranks, PDE rods with floating piston pins and PDE pistons

H22a JDM S-Spec block has relocated oil filter location and main oil galleries. Also has provision for ATTS fitment.

Internally, all the major component parts of any spec H22 will swap into any other H22 apart from of course the crankshafts - a 55mm mains crank from a7 or a8 can be used in earlier JDM A's, A2's and A5's but block mains journals and crank bridge will need to be bolted together, line bored with bearing tabs notched - which doesn't work out cheap. Obviously 50mm mains cranks cannot be used in A7 or A8

http://preludeuk.forumup.com/viewtopic. ... =preludeuk

And more discussion on identification of a Type-S head http://preludeuk.forumup.com/viewtopic. ... =preludeuk

CrankmasterII · Post by **CrankmasterII** » Thu Jun 20, 2013 9:50 pm

Yeah it has the ATTS gearbox AFAIK i checked the code on it , H22A4 is on the block, Cant remember the code off hand either but if someone knew the Type S gearbox here I would be sure to recognise it and confirm that.
Im thinking the head may have been switched at some stage
I literally only took it off recovery truck last Sunday evening and working away all week so have'nt had a good root around in it

CrankmasterII · Post by **CrankmasterII** » Thu Jun 20, 2013 10:02 pm

newkid wrote:
CrankmasterII wrote:Yeah it has the ATTS gearbox AFAIK i checked the code on it , H22A4 is on the block, Cant remember the code off hand either but if someone knew the Type S gearbox here I would be sure to recognise it and confirm that.
Im thinking the head may have been switched at some stage
I literally only took it off recovery truck last Sunday evening and working away all week so have'nt had a good root around in it
h22a4 is the american version isnt it? maybe that could be why the head is p13

Was there a US Type S made then? Bit of a strange one this

Post by **RattyMcClelland** » Thu Jun 20, 2013 10:31 pm

A Type S uses the
M2U4 gearbox
H22a4 engine but is labelled h22a
P5P head.