Thread: 383 build for Scout

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Originally Posted by Earthquake

So what about this set of pistons...
http://www.summitracing.com/parts/stl-h890cp30
Casey

Yep, those will work. I'd use something like a 110315-10 Howards retro hydraulic roller cam with 91164N Howards hydraulic roller tappets.
You can order the cam from Howards with a reduced base circle to clear the 5.7 rods, or you can use a full base circle cam and Scat 25700P rods. You can also use stock Chevy rods and grind some material off at or near the bolt head to clear the cam lobes, but I don't advise grinding on rods.
http://www.summitracing.com/parts/sca-25700p/overview/
http://www.summitracing.com/parts/hrs-91164n/overview/
http://www.summitracing.com/parts/hr...5-10/overview/
These springs would work.....
http://www.summitracing.com/parts/hrs-98212/overview/
Estimate SCR at 9.2:1, DCR at 8.33:1
Use a steel shim gasket to set the squish between 0.035" and 0.045". Gasket thickness added to piston deck height equals squish.

.

How about these pistons...
Sealed Power H859CP30 Speed-Pro Hypereutectic Pistons with Coated Skirt - Free Shipping on All Orders @ JEGS
There a bit cheaper and they list the comp ratio at 9.6 to 1 with 64cc chambers?

I have a block question, would it be worth it to me to use studs on the mains of the "010" block [2 bolt main] for this build or just bolts? Like I said I will not be spinning this motor very high RPM's, I am buying new main and head bolts regardless so a set of stud for the bottom end is not a big deal, I am using bolts on the heads in case I ever have to change a head gasket or come up with a nice set of heads.
Thanks for the help guys!

Casey

I put studs thru-out on my 383 when I built it. Was about 475 HP and I gave
it h#ll. Don't think I really needed the studs at this HP, but I went with them
anyway. You should be ok with just good bolts.