P08 Piston replacement

Skkhan (Skkhan) 2012-01-06 16:08:38 +0500 #1

Hello and Sallam guys

I want to change piston in my D15B vtec P08 . i know the about the Piston sizes and bore stuff , I need to know P08 piston can it be replace wid ZC Piston , I heard from ppl tht u can change it wid ZC piston , as u have to play wid Piston head and valve positions in head, I am not worried about the rings size and bore and valve positions, I am worried about the stroke will ZC piston work in P08 coded block ?? I check the market i didnt find this P08 coded one Piston as importer didnt import yet this P08 coded piston so not avaiblke in Pakistan market. so need help in this any one has an idea or suggestions.

D15B VTEC Piston P08 coded

Bore and Stroke :75,0×84,5 mm
Displacement : 1,493 cc (91.1 cu in)
Rod Length : 137 mm
Rod/Stroke : 1.62
Compression : 9.3:1

Sohc ZC Piston

Bore and Stroke : 75 mm × 90 mm (3.0 in × 3.5 in)
Rod Length : 137MM
Rod/Stroke : 1.52
Compression : 9.2:1

TeamAMS1 (TeamAMS1) 2012-01-06 16:20:32 +0500 #2

what happnd to your stock piston? and yes it will fit right in it all depends on bore and what rod u plan on using?

iceman1 (iceman1) 2012-01-07 04:06:43 +0500 #3

No it wont work!
You will have an insane CR of 14.69 and ZC piston will be 0.049 inches outside the sleeve

TeamAMS1 (TeamAMS1) 2012-01-07 05:58:06 +0500 #4

sir it works very well and i have tried it! you just have to play with the compression part using different rods+for a mini-me you have to make up your mind what you're after the dome might be bigger on the zc but the piston height is 1mm larger on the d15b's though that wasnt d15b vtec and had different rods

TeamAMS1 (TeamAMS1) 2012-01-07 05:58:54 +0500 #5

am talking about the p29/pm7s

Skkhan (Skkhan) 2012-01-08 05:40:39 +0500 #6

@ teamAms1 so basically u saying u need to change rods for zc piston.

@ post .. thanks for replies

TeamAMS1 (TeamAMS1) 2012-01-08 06:08:15 +0500 #7

the deal is almost every part in the d series in interchangeable the question is why do u want to do it if you are planning on a mini-me build then compression can be played out with but if you just want an alternative swap for the pistons then get your self the stock pistons caus the zc p29/pm7 is hard to find and will change your engine compression! u have to tell us the situation if u just want to slap in JUST THE PISTONS then it might be a problem

Skkhan (Skkhan) 2012-01-08 14:52:33 +0500 #8

my engine need bore need to change pistons as over size P08 piston are not available in market so i want to swap other engine model piston, now which piston i go for ???

TeamAMS1 (TeamAMS1) 2012-01-08 16:45:45 +0500 #9

go to shoba bazar get a new block simple the easiest of all

Skkhan (Skkhan) 2012-01-09 08:36:11 +0500 #10

bro most of blocks in shoba bazar r locally used u cnt get fresh block the one japan imported .. u know tht very well wut they do put local parts in it like engine bearings n rings .. the block works for a month then start eating oil .. so its a useless to buy it.. thts y i m thinking of changing piston..

TeamAMS1 (TeamAMS1) 2012-01-09 10:49:03 +0500 #11

you can pretty much find a kabli block if you have a good relation with the guys there go to shakir in shoba and ask him he will get you a kabli block!

Skkhan (Skkhan) 2012-01-10 11:16:33 +0500 #12

Thanks for replies TeamAMS1

iceman1 (iceman1) 2012-01-12 13:21:06 +0500 #13

From my point of view D15B's longer rods are a plus point changing them to shorter length in my opinion makes the engine pretty much use-less...because at higher rpms on shorter rods pistons speeds get high and high piston speeds are not good we all know that...