Centre thrust Vs Rear thrust crank....

[wildturkey]

whats the difference and pros and cons of each?............yes I did do a search first ;D

[Stoffa]

I've been told rear thrust are ment to be slightly better, less stress on the main bearings as far as I know, but not really much difference.

Talk to your engine builder, aparently you can get your block machined to fit rear thrust but that crank I sold you is centre thrust. But I do have a good rear thrust crank out of a V7 sti if you want/need to swap.

If that block you bought is Closed deck it should be centre thrust so what you've got should all match up.

IMO its not worth changing to rear thrust, have you ever heard of a main bearing going on a subie engine before a big end?

Please bear in mind most of what I know i've read or second hand info, you should always check with whoever is doing your machineing and assembly. They are experts most of the time.

[funkytown]

all good / true info stoffa..

but you can get the cross drilled cranks that can only go into a rear thrust block - and therefore giving more protection to those precious BEB's..

What i told you y'day eh Joe

[BC5RA]

 funkytown said:

all good / true info stoffa..

but you can get the cross drilled cranks that can only go into a rear thrust block - and therefore giving more protection to those precious BEB's..

What i told you y'day eh Joe

You've become quite the expert all of sudden.

[funkytown]

 BC5RA']

[quote name='funkytown said:

all good / true info stoffa..

but you can get the cross drilled cranks that can only go into a rear thrust block - and therefore giving more protection to those precious BEB's..

What i told you y'day eh Joe

/quote]

You've become quite the expert all of sudden.

sarcasm is a tough beast to pick online...

but tell me if what i said aint true

[BC5RA]

Just saying.

It's true, cross drilling also removes weight which also has the affect of reducing wear on the Bearings.