beaker

did a google and a hmt search on it and all i could get is that theoldone has done it before but no info/pro/cons. i can get pretty much any d-series block possible. but they all need rebuilts for one reason or another. just kinda wanted to do something different.

so anyways. i checked out the d-series calculator again...saw where it said it was somewhat sketchy. so heres what i tried....d16/7 block with d15 crank, d15z1 head, d16/7 rods, and a y8 head gasket. y8 pistons give it 8.6 c/r and z6 pistons give it 8.4 c/r.

this will be my first complete engine rebuild. just curious if the d15 crank can be used with no problem. or if theres a better way to do it. money is tight so im not interested in "custom" high dollar crank and ----

Guy-Fast

just use a stock block dude your making it way to hard

beaker

i was just thinking about a destroking a motor though. been around to many old v8 guys swapping cranks into other motors. any block i get will need a rebuild anyways. and i can get even better deal on a bare block...(possibly free).

Guy-Fast

well the bore is the same on all d's so your going no where fast



not to mention d15 cranks dont fit in d16 blocks



again you want to actually do it contact bisimoto and get the wallet out. Big bore is the only route with destroking



I simple way is buy a 1.5 and there less stroke

beaker

that answered my question. i was just wanting to do a destroked turbo motor. wasnt worried about the bore, figured it was the same on all ds. but yea. the only way i was going to do this is oem parts.....im not gonna spend ---- tons of money on a small stroke d.


looks like ill just spend the small extra $$ and go for the tt/vitara build

seerex

Wrong, a jdm vtec d15 crank will fit a z6, with vitraras comp ic something like 9:1.

beaker

if thats true....it would have to be mega cheap. otherwise ill just TT/vitara buildup. but the calculator(which could very well be wrong) said ~8.5:1

Bone1

ding ding, we have and idiot.

A Clueless one at that.

Secondaries

Well it won't be mega cheap. Just do like they and you said and TT/Vitara what you have already. It's not going to make a big difference.

D15B = 1.771" Mains
D15Z = 1.968" Mains
D16x = 2.165" Mains

Guy-Fast

oh bone dont you know the d15b crank is really a d16z6 crank duh