jdemodna21

hello honda tech i have a few questions before my sohc build. first question what it]s the best d series engine fore high compression d16y8 or d15b or d16z6? an second question if i do high compression pistons should i get new rods? an should i mill an port the head before put new valves retainers an springs in?

doctorake

Waste of money, swap or turbo.

dafreeeze

Listen to the man

grumblemarc

iTrader: (4)

Best D-series? None.
And there's no such thing as "best".

fonkernuckle

iTrader: (5)

If high compression is what you are looking for then get a D16A6 shortblock and a Y8 head and I would not even spend mo money on all the other mods. Save that money for a gsr.

Orangevirus1

You're gonna open your engine.
get high comp pistons installed.
spend easily 600+ dollars.

and gain 5whp.

B_Swapped93

That's the reality of it. don't waste your money OP....all motor D

jbpnoman

To directly answer your question, the A6 and Z6 are the best D series motors.

That said, if you're asking these questions, you probably shouldn't be playing with these things. Pistons, rods, sleeves, and those are just the basic things you'll need to get any real power. By the time you're done getting everything, I could have used the money you spent on just your engine to buy a Civic, boost it, and be faster than what you've put together.

Striker325

If you get High Compression Pistons you could use your stock rods (you should be fine with the stock rods but check for warp-age).

You can mill the head before you put the valve-train in or you can put the valve-train first then send it for milling.
If you are going to port the head then you need to give your machine shop the valves so they can port-match it to the new valves you are going to use.

ferio-ichi3

Everyone is right, i thought the d was almighty...then i felt gsr vtec...saving money to swap. D series just isnt worth it unless you're bisi