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#1 A15 Block but A12 head i think
crzy_1200_ute Posted on: 2006/10/2 8:10
Hey guys

i got a pic of this but i cant upload them..

can sumone help..

i reckon its a12 head it has circle unless thats just my eyes


cheers
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#2 Re: A15 Block but A12 head i think
possum1200 Posted on: 2006/10/2 8:43
send the picture to slmorris@bigpond.com an ill upload it
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#3 Re: A15 Block but A12 head i think
possum1200 Posted on: 2006/10/2 8:57
Open in new window


from my little experience i think its an a12 head. did you take a picture of the engine number by any chance?
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#4 Re: A15 Block but A12 head i think
crzy_1200_ute Posted on: 2006/10/2 9:09
check ur email
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#5 Re: A15 Block but A12 head i think
possum1200 Posted on: 2006/10/2 9:12
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#6 Re: A15 Block but A12 head i think
crzy_1200_ute Posted on: 2006/10/2 9:43
see the block is an a15.. but the head i dnt no bout.... any others advice?
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#7 Re: A15 Block but A12 head i think
Mildman Posted on: 2006/10/2 11:39
Looks A12 to me - does your intake bolt holes match it? It looks like they do from your pic.

I don't have experience mixing and matching these heads - I dont imagine it's too much of a drama though using the A12 on the A15.
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#8 Re: A15 Block but A12 head i think
Posted on: 2006/10/2 11:46
wouldnt it give higher compression ratio with the smaller chamber area? Also less flow as the valves are 1mm smaller arent they?
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#9 Re: A15 Block but A12 head i think
crzy_1200_ute Posted on: 2006/10/2 12:00
nah there a12 intake and exhaust manifolds..

how much power lose would there be with using the a12 head??

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#10 Re: A15 Block but A12 head i think
Mildman Posted on: 2006/10/2 12:26
You'd only lose it on the top end mainly and hmmm maybe 5-10hp? The intake valve area is lower so the top end hp will be lower as a result - but look at the diff b/w A12 and A14 - it's only about 15hp.
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