b18b rods

General engine questions/issues that aren't specific to the other categories
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b18b rods

By ikon
- Sun Sep 20, 2009 9:26 pm #145252 i read that the stock rods make good replacements for d series rods with just a little machining. do u guys know what machining need to be done, how much do you think it would cost, and is it better to buy aftermarket rods. reason being they r said to b a good cheap upgrade.
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By chrono404
- Mon Sep 21, 2009 12:20 am #145286
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 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 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. Crower sells these for around $40 a set.

Quote Source - b20vtec forum page on putting ls rods onto d16z6 cranks.

source page also gives some cool ideas using b16 pistons and toyota pistons to get a near perfect 1.49 rod/stroke ratio.
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By Greasedmonkey
- Mon Sep 21, 2009 2:53 am #145334 Now that is some good shit! Nice find man.
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