alright im looking to build my d16 because its different. lol i know it doesnt make much power but its what i want i would like to go high compression running on the bottle im trying to figure out what pistons i should use should i stroke the motor? im going to build the head but im not sure if i should keep the y8 head or go to z6 not sure what the difference is any help would be appreciated let me know asap i would like to get the build going as soon as possible.

 

Stroking the motor is totally up to you, look up people who have done it and what they say about it. All i know is it will lower how high you can rev the motor, so it depends what kind of use you want for the motor, dd or race.
As far as the heads go, the z6 gives more room for bigger domed pistons, but the y8 is supposed to flow better and has quench pads to give a better burn, but limits how big of pistons you can run, unless you run a thicker head gasket.
I'm buildin up another HC z6 myself so i know a lil bit about this, if you have any more questions let me know. also check out dseries.org, lots of great info over there.

 

^disregard.

Use the Y8 Head and intake manifold. The Y8 intake and exhaust manifolds flow the best of the OEM manifolds. The head ports match the Intake manifold the best. research cam selection for the Y8 head, they are not as common as other d-series cams. Check out the Bisimoto website and see what they offer. The quench pads and smaller combustion chambers offer better burn characteristics than a larger combustion chamber. You do not need to have a piston with as large of a dome which helps prevent detonation. I would reconsider using the Y8 block. For some reason the Y8 tends to spin rod bearings more easily than other d-series engines. I'm not sure why, something about the oil pump. Whichever block you choose, you will need to at least upgrade the rod bolts or replace the rods. as long as you do not use too much nitrous, the rods bolts will suffice.

What I would do:

D16A6 or D16Z6 block, crank and rods NEW OIL PUMP
ARP rod bolts
D15B7 pistons
D16Y8 head, head gasket and intake manifold w/ OBD2 B-series throttle body (must have IAC on throttle body)
Stock OBD1 injectors
Custom camshaft regrind from Bisimoto
Valve springs that will support 8000 rpm
Inexpensive Tri-Y header

This will give you just over 12:1 compression and a fun little engine.

 

^ why should he disregard the answers to his questions i just gave him? He asked what the difference was between heads, which i told him, not what you think he should build.
you pretty much told him the same thing about the y8 head that i just said.

but if you wanna throw out build ideas ill lend you mine
Z6 P&P head and honed block
d16a1 pg6 pistons
arp rod and head bolts
bisimoto stage 3 cam, cam gear, valve springs and retainers
supertech valves
custom IM with port matched runners and B16 tb port matched
smsp header

 

Except you think that having larger piston dome is better. Which is not true. There is no sense in using custom parts on a all motor D-series build, IMO. The power gains are not worth the extra investment. With the proper selection of OEM parts, off-the-shelf parts, and modified OEM parts, you can have a pretty decent engine.

 

ok ya i should've been more specific in what i was talking about, i didnt mean to use custom domed. i just know everyone and there brother when doing high compression d series wants to use p29 pistons, which have a high dome, and give NO clearance on a y8 head. Not much on a z6 neither, i'd never use them personally. but if you look at my build im using the other d16a1 pistons (code pg6) which are more of a flat top and they bump compression almost as high and give plenty of big room for a big cam if thats what your looking for like i am.

but thats why i asked the op if this is for just a fun dd or a race application. Cause like you said theres plenty of different combos of stock pistons, cams, heads, IM, etc. to have a fun dd

 

its been awhile but i got my build up and going still some things i want but low budget i did what i did shaved my y8 head got a d15b7 block got an si tranny and a lightweight flywheel and its a fun little car needs tuned but its good for now thanks for the advice

 

Id go y7block with z6 head /arp studs/ y8 manifold /aftermarket exhaust/ 11lb flywheel/ as much nitrous as you want and a good tune most importantly. should be more than fun to play with on the weekends and a fun D.D. as well. the y7block has additional oil squirters/ orifaces where the bearings sit thus letting more oil flow and not burn them up. The y7 head sucks so dont bother however i ran an 80shot dry on my d16y7 with stock intake manifold which i liked the way it dissipated the nitrous evenly to all 4 cylinders but the ports are tiny. I ran through 2 bottles a week for over a year and a half with 230k miles on it with no problems whatsoever. my compression was great across the board when i sold it to my friend who boosted it and didnt tune it and blew it up 8months later that motor was a beast. g/l with the build there are probably a million combos you would go with but do research.

 

its currently being boosted as we speak but thanks for the info!