Engine pulleys

[Mal]

What engine pulleys do you need when fitting a 6-bolt block. The harmonic balancer has four bolt holes so the 260 one won't fit.
Thanks Mal.

[V8 burble]

Is this a brand new crate engine from Ford or has it been machined and assembled by somebody else?
Your rotating assembly should have been balanced with either a 50 oz damper (more likely, especially on a new Ford factory SVO 340 crate engine) or possibly a 28 oz damper. The damper should be 3 inches in depth, front to back. A lot of dampers come drilled for both 3 and 4 bolt pulleys (see below). Unfortunately, some do not.

You need to replace the current 4 hole damper with a 3 hole version in a like-for-like swap (50 oz for a 50 oz or 28 oz for a 28 oz).

Ford 302 SVO 340:
http://www.pauls-place.com/products-for ... engine.asp

For a non-SFI rated 50 oz damper, try the Summit Racing 163302 one:
http://www.summitracing.com/parts/SUM-163302/

For a non-SFI rated 28 oz damper, try the Summit Racing 163289 one:
http://www.summitracing.com/parts/SUM-163289/

For a race-legal SFI rated 28 oz damper, try the Summit Racing C4269 one:
http://www.summitracing.com/parts/SUM-C4269/

[Mal]

Thanks V8 burble.
The engine is a 5.0L with GT40P heads, so it,s the 50oz balancer I need from summit.
Cheers Mal.

[sbt302]

Hi Mal,

It's easier to change the pulley instead of the expensive multi holed(3bolt+4bolt pattern)harmonic damper.

A while back I made a batch of 4 bolt ally pulley for the later 302(usually 86'on 50oz) because I had the same problem..I've got 5 left(fitted 5 on other members cars) £50 each..

[martin172]

I'll be honest and say that until I read this thread, I'd never heard of a harmonic damper.

For anyone in the same boat, here's a linky that explains it.

http://www.toyotacelicaonline.com/pulleys.htm

I must admit that my brain was starting to melt towards the end. It's not a thrilling read.

[Tomaselli]

I made a batch of 4 bolt ally pulley

Did you use aircraft steel?

[sbt302]

No I used aircraft alloy...

[garyv8tiger]

No I used aircraft alloy...

and sticky tape ,oh and silicone ,oh and copperslip luv copperslip