b16 pistons on rods in my D15B1?
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From: Carson City, NV
b16 pistons on rods in my D15B1?
I was just wondering if anyone knew if i could put b16 pistons and rods in my D15B1 its got 260K miles on it and I found a great deal on PR3 pistons and rods. I really want to rebuild my poor, weak over worked motor. Please let me know what you think!!!
Re: b16 pistons on rods in my D15B1?
Mind you doing this will require you to bore out to the size of a D16
Using LS Rods in a D series:
The crank ends of the LS rods and D series are same size around at 1.890" (48mm). The crank end bore width needs to be milled to match the D16 or D15b crank rod journals. Shave .022" off each side of the crank end of the rod.
The piston end bore needs to be bushed to match the D16/D15b piston's smaller pin size. The pin on the LS pistons is 0.826" (21mm), the pin on the D16 pistons is 0.748" (19mm). You need the custom made aluminum-bronze bushing with a width of 0.786, ID. 0.748, OD. 0.827 +(over) three thousands due to the bushing will be pressed in the small-end of the LS rods, so the bushing won't come out of the hole.
Using LS Rods in a D series:
The crank ends of the LS rods and D series are same size around at 1.890" (48mm). The crank end bore width needs to be milled to match the D16 or D15b crank rod journals. Shave .022" off each side of the crank end of the rod.
The piston end bore needs to be bushed to match the D16/D15b piston's smaller pin size. The pin on the LS pistons is 0.826" (21mm), the pin on the D16 pistons is 0.748" (19mm). You need the custom made aluminum-bronze bushing with a width of 0.786, ID. 0.748, OD. 0.827 +(over) three thousands due to the bushing will be pressed in the small-end of the LS rods, so the bushing won't come out of the hole.
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Joined: Jul 2009
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Re: b16 pistons on rods in my D15B1?
Mind you doing this will require you to bore out to the size of a D16
Using LS Rods in a D series:
The crank ends of the LS rods and D series are same size around at 1.890" (48mm). The crank end bore width needs to be milled to match the D16 or D15b crank rod journals. Shave .022" off each side of the crank end of the rod.
The piston end bore needs to be bushed to match the D16/D15b piston's smaller pin size. The pin on the LS pistons is 0.826" (21mm), the pin on the D16 pistons is 0.748" (19mm). You need the custom made aluminum-bronze bushing with a width of 0.786, ID. 0.748, OD. 0.827 +(over) three thousands due to the bushing will be pressed in the small-end of the LS rods, so the bushing won't come out of the hole.
Using LS Rods in a D series:
The crank ends of the LS rods and D series are same size around at 1.890" (48mm). The crank end bore width needs to be milled to match the D16 or D15b crank rod journals. Shave .022" off each side of the crank end of the rod.
The piston end bore needs to be bushed to match the D16/D15b piston's smaller pin size. The pin on the LS pistons is 0.826" (21mm), the pin on the D16 pistons is 0.748" (19mm). You need the custom made aluminum-bronze bushing with a width of 0.786, ID. 0.748, OD. 0.827 +(over) three thousands due to the bushing will be pressed in the small-end of the LS rods, so the bushing won't come out of the hole.
You can pick up a set of Wiseco or CP pistons & H beam rods for a dseries by the time your done paying the machine shop to do this work plus the parts ..
U can go extremeley cheap and get the Vitara sets on ebay and that will get you going plus you can boost it later if you like. Ive built a few of those for friends running 18 & 22 psi and still holding strong after a year of beating it up
Really depends on what your budget is.
I have some pics on my myspace page of my engine build i did 2yrs ago using Vitara pistons and h beam rods I spent about $600 for everything i needed including head studs and head gasket
www.myspace.com,SpeedzoneFL
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Joined: Aug 2005
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From: NE Ohio, USA
Re: b16 pistons on rods in my D15B1?
b16 pistons are stock 81mm in size, D series stock are 75mm.
It's not practical to sleeve a D series and run 81mm, which you will have to do to run b series pistons. Just get a nice set of forged pistons/rods for ~6-700 dollars and be done.
Most people have ran up to 80mm but thats getting adventurous. Most run 78-79mm as a max bore which is on a sleeved motor, atleast that I have seen.
If you are looking for a cheap alternative to get some power, do a DPFI to MPFI conversion and if you want a little more power, do a VTEC head on the b1 bottom end.
It's not practical to sleeve a D series and run 81mm, which you will have to do to run b series pistons. Just get a nice set of forged pistons/rods for ~6-700 dollars and be done.
Most people have ran up to 80mm but thats getting adventurous. Most run 78-79mm as a max bore which is on a sleeved motor, atleast that I have seen.
If you are looking for a cheap alternative to get some power, do a DPFI to MPFI conversion and if you want a little more power, do a VTEC head on the b1 bottom end.
Last edited by dephtone; Jul 16, 2009 at 08:36 AM.
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