where can I get a B17 crank?

[Accordtheory]

Anyone know of any legit sources? Thanks

[Justin86]

you know I do remember seeing a B17 short block at the local junk yard awhile back, I'll have to check if it's still there.

[SteveDX89]

Hopes, prayers, and dreams. I saw a used on eBay not too long with a starting bid of $250. Unless you find a junkyard that doesn't know how rare it is, you're fucked. New ones are over $1000.

[masterkillalw]

try www.G2IC.com ...u might find one there...MIGHT...key word...

[AccordEpicenter]

whats the stroke of the b17? You might be able to use a B16 crank i think

[SteveDX89]

whats the stroke of the b17? You might be able to use a B16 crank i think

Little bit longer than a B16. Think around 81 mm. Not sure if the difference is in the crank or rods.

[Justin86]

yea the one at the j/y is gone, what you plan on doing with it?

[mouchyn]

there's one in my little brother's 92 GS-R but you can't have that one.

the b17 is one helluva engine. it certainly beats the pants off the b16.

[SteveDX89]

If you can't find a B17 crank and are willing to go with a B16, I've got one sitting around that you can buy.

[masterkillalw]

what about the B18 Crank...too long???

[jigga89SEi]

I was under the impression that the b16 and b18 would fit... it's just a matter of compensating for the different lengths...

[SteveDX89]

I was under the impression that the b16 and b18 would fit... it's just a matter of compensating for the different lengths...

They all fit. It's just a matter of using the right combo of rods and pistons to keep the pistons from going above the deck. For example, an LS crank, rods, and pistons will fit in a B16 block but since the B16 deck height is 7 mm shorter than the LS, the pistons would stick out of the block at TDC. That means slamming into the valves/head. Bad bad condition. It can be quite a hassle trying to figure out what combo will work.

[Accordtheory]

well, thanks for the input, but I guess that was a dumb idea..I wanted to destroke a B18 (81.4mm vs 89) but i guess even with the eagle 5.531" rods, the piston would need to have a lower wristpin, which would make it heavier..?thus negating the benefits..(I want to hit 10k rpm). That sounds retarded to me, but I'm not about to argue with endyn. I'm about to drop a gsr crank (87.2mm) in the B18b instead. (1.58:1 rod/stroke instead of 1.54)

[SQ is the SQUAD]

putting a gsr crank in a ls block makes it a gsr block witout all the good stuff, you loose all the tourque

[AccordEpicenter]

my boy hits 9500 all day long in his LS/Vtec (ls bottom end). Oh yeah, its stock, down to the factory rod bolts . The difference between the B16 and B17 is in the crank, the B16 is 77mm stroke, the b17 is 81mm?

[Accordtheory]

I have a couple friends that rev the piss out of their stock ls bottom end/vtec head conversions too. I wouldn't do that, because the stock ls rev limit is only like 7200. I tried to explain how the rod breaks on the overlap cyle on an n/a engine, because of tension induced by the piston and the mass of the rod itself, coupled with the negative cylinder pressure on the overlap cycle, and how this is almost solely rpm dependent, but they don't listen. The way I think, yeah, it lasted so far, but the next time you hit 8.5k or up could be the last..that shit was not designed to rev that high.

[Accordtheory]

putting a gsr crank in a ls block makes it a gsr block witout all the good stuff, you loose all the tourque

the gsr is still 98% the displacement of the ls..

[SteveDX89]

You're talking about 1.8 mm of piston travel. I don't really think it can have that much negative effect especially with R/S ratios so close. From I've read, the LS bottom end is the strongest of them all so that adds even more.

[Justin86]

well most of Honda's R/S ratios are not to bad, the best is hte B16 with a 1.74:1 and the K20/ B17 with a 1.62:1. The B18 isn't to bad with a 1.54:1 but not one of Honda's best.