scooter

I searched on this topic and didnt find too much info.
I have a GE sleeved C5 block which I will be building for a turbo application and I also have a B20a crank lying around so I was curious if anyone had done this with custom rods and pistons before?
This is assuming the crank is totally balanced.

scott

inspyral

Isn't the B2 crank the same as the B18A/B crank? I believe you just use LS/B20 rods with that crank in a C5 block.

boostaholic

The B20a crank is from the earlier preludes and is way different than the B18a/b/B20b/z cranks. I believe the b20a blocks also had a girdle across the main caps. The b18a/b and b20b/z cranks will go into the b18c5 block, but i'm not sure about the b20a crank.

liam821

b20a != b20b or the b20z. The b20a is out of the old old prelude 2.0 dohc. Its a pos. I believe the b20b/b20z cranks are the same as the b18a/b18b. (correct me if im wrong)

Although crower used to use the b20a crank (with some machining i think) to fit in a b16/b18 with special rods...and it would increase the displacement .2. So a 1.6 -> 1.8 and a 1.8 -> 2.0.

I really dont know what you need..crower doesnt use that crank anymore in thier stroker kits because its hard to get ahold of.

liam

scooter

I would not ask the question if I wasnt sure that the crank would go into the block. The answer is yes it will fit the block.

The B20a is from a 88-91 prelude and has a longer stroke than the B20b/z.

scott

CRVRX

B20A motor is a 2.0L with a 81mm bore , the B20B+Z is a 2.0L with a 84 mm bore. Yes the crank has a longer stroke , I 'm not sure who has the pistons and rods for it.
And I belive the question was not " is the B20A motor good?"
I'm sure someone out there will have the anwser , and not just make stuff up they know nothing about.

liam821

I just said crower made a stroker kit for that [b18a] crank in a b16 b18 motor...or maybe you didnt read that?

liam

CRVRX

liam821, I wasn't quoting you , I was just making a point so it didn't start into evreybody guessing at stuff.

liam821

liam