Ls1 piston replacement?
#1
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Ls1 piston replacement?
My 01 z28 motor broke a valve spring. Valve hit the piston. Since I've been getting oil in that cylinder. Valve guide has been replaced as well as the valve. Thinking I need pistons but they run 142 ea at the dealer. Going to a forged piston seems silly for a daily driver and no compression gain. Are any of these cheap aftermarket cast pistons good for daily drivers? And close to the factory pistons weight?
#2
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Mahle makes a few nice options. They have what they call a power pak deal that pretty reasonable and high quality.
or i have a set of ls6 pistons and rods i can sell you out of my ls6. Pm me if interested.
or i have a set of ls6 pistons and rods i can sell you out of my ls6. Pm me if interested.
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We have the KB/Silvolite cast pistons. You mentioned compression. We build our Pro LS LS1 pistons with a 3cc dome. At 3.903, that would net you 10.75:1 with a .040 piston to head with stock 68cc chambers. Milling the heads 5cc while they're off would bump that to 11.5 and give you room for a big cam later down the line. And more spray. We've got gen. 3 and 4 rod options along with aftermarket. Scat just released their new bushed as-forged I-Beams standard length, but strangely they made them for .945 pins. Our press-fit Gen. 3 pistons with .945 pins actually have a circlip provision for times like these.
#4
My 01 z28 motor broke a valve spring. Valve hit the piston. Since I've been getting oil in that cylinder. Valve guide has been replaced as well as the valve. Thinking I need pistons but they run 142 ea at the dealer. Going to a forged piston seems silly for a daily driver and no compression gain. Are any of these cheap aftermarket cast pistons good for daily drivers? And close to the factory pistons weight?