Street sleeper RT

[mikeyboy]

How does the Moorespeed long skirt plus rebore/hone compare to the Siebenrock kit for cost and performance?

It appears to be a practical approach when rebuilding a tired unit, the Siebenrock kit are c£900 and in limited supply atm.

Cost wise,it’s about the same,
However,Richards pistons are higher compression.

 

[mikeyboy]

Any mild head porting or valve work planned ?

Not on this motor,
It’s just a good midrange boost we are after ,(without breaking the piggy bank)

 

[Pukmeister]

Not on this motor,
It’s just a good midrange boost we are after ,(without breaking the piggy bank)

Is the new cam a performance profile (lift/duration) ??

 

[mikeyboy]

Moorespeed 328,
I think the lift is pretty much unchanged,but more duration,
Without checking I seem to recall standard is 307 deg,
I’ve fitted them in a few motors now and they make good power right up through the revs,
With the increase in capacity and compression,combined with the slide carbs it should pull really well.
Short shift up to 3rd and give it a handfull.

 

[Mad Hatter]

Do you get any pinking probs with the high comp pistons?

 

[mikeyboy]

Not once it’s been set up

 

[chopper_harris]

Barrels back from langcourts,
Bored to 95mm ,1001 cc
New stainless pushrod tubes

View attachment 289291

Are the barrels bored over 95mm, then plated and honed to size ?