Manufacturer reference photos may show other components. Your order includes the sale unit described here.
Mahle · New
Mahle MS Piston Set BBC Mar 509ci 4.50in Bore 4in Stroke 6.135in Rod 0.990 Pin -3cc 9.0 CR Set of 8
MPN 930077100 · Store SKU mhl930077100
Sold as one set of 8.
Supplier stock checked 11/8/2026, 3:26:27 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
509cid 4.500 x 1.645CH, 4.000stroke,6.135rod,0.990pin,-3.0cc,661g,8.9CR, 4032 Piston (set) - BIG BLOCK CHEVY 502 MARINE "DROP IN" REPLACEMENT
Manufacturer fitment & guides
- Chevy Big Block 509 cu in.
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y