Ap2 block w/ Ap1 heads.
#1
Ap2 block w/ Ap1 heads.
Iv seen plenty of threads about it working but couldn't find anyone who has actually done it first hand. Will an 04 ap2 block work with my 2000 ap1 heads and ecu. All internals are stock.
#4
Use the 2000-2001 ECU if that's not what you already have.... use your AP1 harness. I would recommend upgrading the retainers in the AP1 head to AP2 if you haven't already done so. Also, as stated, don't get comfortable revving to 9K all day every day. Once or twice is okay, but it'd be best not to.
This thread has a lot of useful info.... https://www.s2ki.com/s2000/topic/832...ith-ap2-motor/
This thread has a lot of useful info.... https://www.s2ki.com/s2000/topic/832...ith-ap2-motor/
#5
Also, when I say the heads are identical. I mean the casting. There are differences with the retainers and the cams, but don't worry about those if you follow my advice and upgrade to AP2 retainers.
#7
It's a must in the sense that they are much more resilient and resist cracking, unlike the AP1 retainers. They're just plain better. If I were doing this swap, the AP2 retainers would be a given.
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#8
Use the 2000-2001 ECU if that's not what you already have.... use your AP1 harness.
This thread has a lot of useful info.... https://www.s2ki.com/s2000/topic/832...ith-ap2-motor/
This thread has a lot of useful info.... https://www.s2ki.com/s2000/topic/832...ith-ap2-motor/