Anyone ever put a d16a6 head on a sohc zc block?
05-25-2008, 07:13 AM
#1
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Anyone ever put a d16a6 head on a sohc zc block?
Purchased a sohc zc engine(96-98 Honda Domani) from h-motors online but the head was seized up. After many months of sitting we decided to use the head off the a6 and the block off the zc.
Anyone ever do this? I assume it might be the same as any other frankstein swap.
Anyone ever do this? I assume it might be the same as any other frankstein swap.
05-25-2008, 02:17 PM
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The d16a6 has an oil pressure regulator that sticks in the block, whereas a vtec motor does not. You always have to remove that pressure regulator when doing a mini-me. I'm not sure if you can get your hands on one of those and stick it in the later block or not, it might not fit.
05-25-2008, 04:29 PM
#4
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Re: (importdreamer)
exactly, the oil restrictor needs to follow the head... when doing a reverse of what you're doing you have to remove the oil restrictor because later heads have this reduction built in. Older heads like your d16a6 need the oil restrictor. So what he's saying is right, you would need to put the restrictor into the oil hole in the center of your deck before putting the older head on it. problem is it wont fit in the hole w/o machining. Running that head on that bottom end without the oil restrictor will give you lack of oil issues
05-25-2008, 08:51 PM
#5
Re: Anyone ever put a d16a6 head on a sohc zc block? (importdreamer)
What ? I got something totally different from what he asked; d16a6, sohc zc, block, head.
Some dumb mechanic once stripped all the threads on my head for my sohc zc, so I got a a6 head and just swapped the camshaft and valves etc.
the only differences in those engines is that the zc is the jdm version of the a6, it has 128 hp instead of 108. This is done by a more aggressive camshaft and ecu...and it
's stamped ZC instead of d16a6
yes it's doable, just swap the stuff off the zc head to the a6 and the ecu too so you get all those ponies, they're the same engines
Some dumb mechanic once stripped all the threads on my head for my sohc zc, so I got a a6 head and just swapped the camshaft and valves etc.
the only differences in those engines is that the zc is the jdm version of the a6, it has 128 hp instead of 108. This is done by a more aggressive camshaft and ecu...and it
's stamped ZC instead of d16a6
yes it's doable, just swap the stuff off the zc head to the a6 and the ecu too so you get all those ponies, they're the same engines
05-26-2008, 08:25 AM
#6
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Re: Anyone ever put a d16a6 head on a sohc zc block? (acmoc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by acmoc »</TD></TR><TR><TD CLASS="quote">What ? I got something totally different from what he asked; d16a6, sohc zc, block, head.
Some dumb mechanic once stripped all the threads on my head for my sohc zc, so I got a a6 head and just swapped the camshaft and valves etc.
the only differences in those engines is that the zc is the jdm version of the a6, it has 128 hp instead of 108. This is done by a more aggressive camshaft and ecu...and it
's stamped ZC instead of d16a6
yes it's doable, just swap the stuff off the zc head to the a6 and the ecu too so you get all those ponies, they're the same engines</TD></TR></TABLE>
Can we just swap the cam shaft and valves with out swapping ecu's? We never had the right ecu. We have the original si ecu.
Some dumb mechanic once stripped all the threads on my head for my sohc zc, so I got a a6 head and just swapped the camshaft and valves etc.
the only differences in those engines is that the zc is the jdm version of the a6, it has 128 hp instead of 108. This is done by a more aggressive camshaft and ecu...and it
's stamped ZC instead of d16a6
yes it's doable, just swap the stuff off the zc head to the a6 and the ecu too so you get all those ponies, they're the same engines</TD></TR></TABLE>
Can we just swap the cam shaft and valves with out swapping ecu's? We never had the right ecu. We have the original si ecu.
05-26-2008, 09:37 AM
#7
Honda-Tech Member
Re: Anyone ever put a d16a6 head on a sohc zc block? (acmoc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by acmoc »</TD></TR><TR><TD CLASS="quote">What ? I got something totally different from what he asked; d16a6, sohc zc, block, head.
Some dumb mechanic once stripped all the threads on my head for my sohc zc, so I got a a6 head and just swapped the camshaft and valves etc.
the only differences in those engines is that the zc is the jdm version of the a6, it has 128 hp instead of 108. This is done by a more aggressive camshaft and ecu...and it
's stamped ZC instead of d16a6
yes it's doable, just swap the stuff off the zc head to the a6 and the ecu too so you get all those ponies, they're the same engines</TD></TR></TABLE>
If the ZC is really from a 96-98 it isn't going to just swap over. There are quite a few engines that wear the ZC stamp in japan. They are not the "same engines" There is a ZC engine extremely similar to the us market d16a6, but that particular ZC wasn't made from 96-98. Besides that, this guys head is seized! why would you tell him to just swap new peices into that head if he already had a complete working head that would theoretically go right on?
So. why don't you make sure the ZC you have is really a 96-98. My question is, does the valve cover look to have the same bolt pattern as your d16a6 or is it more similar to a later d series valve cover?
Some dumb mechanic once stripped all the threads on my head for my sohc zc, so I got a a6 head and just swapped the camshaft and valves etc.
the only differences in those engines is that the zc is the jdm version of the a6, it has 128 hp instead of 108. This is done by a more aggressive camshaft and ecu...and it
's stamped ZC instead of d16a6
yes it's doable, just swap the stuff off the zc head to the a6 and the ecu too so you get all those ponies, they're the same engines</TD></TR></TABLE>
If the ZC is really from a 96-98 it isn't going to just swap over. There are quite a few engines that wear the ZC stamp in japan. They are not the "same engines" There is a ZC engine extremely similar to the us market d16a6, but that particular ZC wasn't made from 96-98. Besides that, this guys head is seized! why would you tell him to just swap new peices into that head if he already had a complete working head that would theoretically go right on?
So. why don't you make sure the ZC you have is really a 96-98. My question is, does the valve cover look to have the same bolt pattern as your d16a6 or is it more similar to a later d series valve cover?
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05-26-2008, 09:44 AM
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Re: Anyone ever put a d16a6 head on a sohc zc block? (importdreamer)
it wont matter both motors are non v tec so the head will go on the block with no problems....
05-26-2008, 10:01 AM
#9
Re: Anyone ever put a d16a6 head on a sohc zc block? (AK_CRX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AK_CRX »</TD></TR><TR><TD CLASS="quote">
If the ZC is really from a 96-98 it isn't going to just swap over. There are quite a few engines that wear the ZC stamp in japan. They are not the "same engines" There is a ZC engine extremely similar to the us market d16a6, but that particular ZC wasn't made from 96-98. Besides that, this guys head is seized! why would you tell him to just swap new peices into that head if he already had a complete working head that would theoretically go right on? So. why don't you make sure the ZC you have is really a 96-98. My question is, does the valve cover look to have the same bolt pattern as your d16a6 or is it more similar to a later d series valve cover?</TD></TR></TABLE>
O... my bad, I'm refering to the d16a6 and sohc zc non vtec engines from the 88-91 civiv/crxs. but if vtec isn't involved, just check that everything's the same, and you can try wikipedia "D series engine" Maybe that will help
If the ZC is really from a 96-98 it isn't going to just swap over. There are quite a few engines that wear the ZC stamp in japan. They are not the "same engines" There is a ZC engine extremely similar to the us market d16a6, but that particular ZC wasn't made from 96-98. Besides that, this guys head is seized! why would you tell him to just swap new peices into that head if he already had a complete working head that would theoretically go right on?
So. why don't you make sure the ZC you have is really a 96-98. My question is, does the valve cover look to have the same bolt pattern as your d16a6 or is it more similar to a later d series valve cover?</TD></TR></TABLE>O... my bad, I'm refering to the d16a6 and sohc zc non vtec engines from the 88-91 civiv/crxs. but if vtec isn't involved, just check that everything's the same, and you can try wikipedia "D series engine" Maybe that will help
05-26-2008, 02:24 PM
#10
Honda-Tech Member
Re: Anyone ever put a d16a6 head on a sohc zc block? (acmoc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91crx_racer »</TD></TR><TR><TD CLASS="quote">it wont matter both motors are non v tec so the head will go on the block with no problems.... </TD></TR></TABLE>
Even if they are both non-vtec the later version will non-vtec will not have the oil reducer in the deck, and the old school head requires it. If his engine is a non-vtec sohc zc from 96-98 it is probably most similar to a US spec d16y7 which has the revised head and no oil reducer in the block. Yes the head will bolt right on, but w/o the oil reducer you will starve you're lower end of oil, premature main and rod bearing wear, spun bearings, and or seized up lower end. So throw it on there if you want, it'll run fine for the first 5-10,000 miles
Find a correct newer model D head to put on there and save yourself the headache... It's not like it'd be hard to find....
JDM d15b head, us d16y7, d16y8, d16z6 are all good candidates that wont require you to machine the hole to accept an oil restrictor as these heads basically have a restrictor built in
Even if they are both non-vtec the later version will non-vtec will not have the oil reducer in the deck, and the old school head requires it. If his engine is a non-vtec sohc zc from 96-98 it is probably most similar to a US spec d16y7 which has the revised head and no oil reducer in the block. Yes the head will bolt right on, but w/o the oil reducer you will starve you're lower end of oil, premature main and rod bearing wear, spun bearings, and or seized up lower end. So throw it on there if you want, it'll run fine for the first 5-10,000 miles
Find a correct newer model D head to put on there and save yourself the headache... It's not like it'd be hard to find....JDM d15b head, us d16y7, d16y8, d16z6 are all good candidates that wont require you to machine the hole to accept an oil restrictor as these heads basically have a restrictor built in
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