My block is at the machine shop, i already have a brand new LE2 setup, i was thinking of going this way with the block?


The kit is designed for you to build your own 355LT1 utilizing your stock GM 350 crank. The kit features premium forged Mahle pistons/rings/pins/locks, SCAT 4340 forged I-beam rods with 7/16" rod bolts.

Have your machine shop bore and plateau hone your stock block to 4.030, align hone the mains, square deck the block to 9.010", install cam bearings and oil galley and core plugs. Also have your balance shop balance your stock crank for the SCAT rods and Mahle power pack.
The -5cc flat top Mahle piston would give about 11.8:1 static compression ratio if using a 54cc chamber head with .029" B-body head gasket and piston in the hole 0.010". If the cylinder head combustion chamber is 58cc then static compression ratio would be 11.2:1 .


The 355 kit features the following parts.
Mahle piston "PowerPak" #SBC250030F05 (3.48 stroke, 6.000" rod, 4.030 bore)
The Mahle PowerPak features graphal coated forged flat top pistons, 1.5mm, 1.5mm, 3.0mm plasma moly file fit rings, F-1 style round wire locks and piston pins.
SCAT 6.000" 4340 forged I-beam rods with 7/16" cap screw style rod bolts #2ICR-6000-7/16

 

Get them to zero deck the block, or whatever Lloyd recommends. Make sure they check the quench, compression and all the essentials. Then just get a good tune.

Looks good.

 

Yea i was going to buy a whole rotating assembly, but this setup is real attractive, forged rods, forged Mahle pistons. Thats good stuff, i would rather pay machining costs and use my old crank.

 

Static compression ratio is fine and be sure to use a 160*F Thermostat. Are you using the stock cam? What is your Dynamic Compression Ratio?

 

No LE2 Cam

 

Mines got the same bottom end, should be starting it up as soon as I get my opti next week. Motor's just sitting in the car waiting....

 

Who balanced your setup?

 

A local machine shop. Mine will have a little more compression, due to the zero deck and milling on the heads. Can't wait to fire the car up. Hopefully Wed...

 

jclark311, what does that kit go for price wise? In the future I would like to do the same. Just stud the stock crank and use some quality rods and pistons. Thanks in advance, Rick.

 

It was $709.00, on a buy it now from EBAY, The sellers EBAY store name is Raceparts$ , he has almost 12000 buys with a 99.7 EBAY score.

 

Thanks again.

 

That's where I got my rods, but I bought my pistons from another seller on ebay.