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TrakCord
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1,485 Posts
yes it is possible however you need to change the crank position sensor and trigger wheel for the J30a4 over to the J32a2 block...also you must verify the valve diameters are identical otherwise you will bend the valves for sure..everything else will bolt up perfectly no problem, i would verify all the sensors are the same just to be on the safe side...if you look in the 6th gen accord forum there is information regarding the valve diameters
 

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TrakCord
Joined
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1,485 Posts
ok just found the post in the 6th gen forum...the j30a4 has a 1mm smaller diameter intake valve soooo....idk for sure but i think you can use the J32A2 block/pistons becuz the relief cuts on the pistons are for 36mm valve as opposed to the J30a4 block/pistons that have 35mm relief cuts

J30A1 '98-02 AV6: 34mm/29mm (intake/exhaust)
J30A4 '03+ AV6: 35mm/30mm
J32A1 '01-03' TL/CL: 34mm/30mm
J32A2 '01-03 TL-S/CL-S: 36mm/30mm
J32A4 '04+ TL: 35mm/30mm

J35A1 '99-01 Odyssey: 34mm/29mm
J35A4 '02-04 Odyssey: 35mm/30mm
 
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