PDA

View Full Version : sst60 vs 70 hp 56 cube



rekcuftar
07-29-2010, 04:26 AM
How is the powerhead of a 56 cube 70 hp different from the sst60?

Powerabout
08-01-2010, 06:03 AM
How is the powerhead of a 56 cube 70 hp different from the sst60?
The porting

ima75man
08-01-2010, 07:05 AM
The porting

you saying the porting was a 15 h/p gain, how about the reeds and cylinder head and tuner?

Powerabout
08-01-2010, 05:06 PM
dont know where you get the horsepower spec but yes
head is shaved and the tuner is different
reeds are stock but the rules allow plastic ones

OUTBOARDER
08-02-2010, 01:11 PM
dont know where you get the horsepower spec but yes
head is shaved and the tuner is different
reeds are stock but the rules allow plastic ones

70hp 56ci makes about 70 HP @ Propshaft.

SST 60, 56 ci make about 100hp @ powerhead = about 90HP @ Propshaft.
Head = 7-10 hp
Tuner = 7-10 hp and helps with over rev.........
Plastic reeds help a little.
No air box helps top end.

That is all.

ima75man
08-02-2010, 01:27 PM
thanks for the reply, nobody seems willing to speak up... i'm looking for a sst-60 cylinder head thanks again 75 man out

Powerabout
08-02-2010, 04:50 PM
Everything you need to know is on the APBA web site for this engine.
The head is just a shaved stocker.
all the dimensions are there for you to copy

ima75man
08-02-2010, 08:25 PM
man we don't copy, we make it better, that's why we are hot rodders.

OUTBOARDER
08-03-2010, 06:47 AM
thanks for the reply, nobody seems willing to speak up... i'm looking for a sst-60 cylinder head thanks again 75 man out

I am looking at Machine Shop in Charlotte in September.
I have to do some 56ci stuff..........

Anhtony

jerry book
08-06-2010, 10:04 PM
I have a sst 60 powerhead Long block no electrics or carbs fresh rebuild new pistons rings bearings all new, blue printed 60 head 1500 plus shipping new sst60 cowls available also