CP Pistons Bullet Series Forged Piston Set 4.500 Bore - Big Block Chevy 4.000 Stroke, 6.385 Rod, 24.5cc Dome - Set of 8

CP Pistons Bullet Series Forged Piston Set 4.500 Bore - Big Block Chevy 4.000 Stroke, 6.385 Rod, 24.5cc Dome - Set of 8

CP Pistons SKU: CPPBBC5312-STD
Price
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Details

BrandCP Pistons
SKUCPPBBC5312-STD
Manufacturer Part NumberBBC5312-STD

Product Information

A set of eight forged Bullet Series pistons machined from 2618 aluminium forgings for Big Block Chevy engines running 24 degree or 26 degree open chamber heads. Bore is 4.500 in on a 4.000 in stroke and a 6.385 in rod, giving 509 cubic inches, and the 24.5cc dome yields a 10.60:1 compression ratio against a 118.0cc chamber. Compression height is 1.400 in and the heavy duty .200 in wall pins measure .990 in diameter by 2.930 in long. A ring pack is supplied with the set in 1/16 in top, 1/16 in second and 3/16 in oil. CP rates the set for naturally aspirated use.

Specifications

Type Forged piston set, 2618 aluminium (CP Pistons Bullet Series)
Application Big Block Chevy, 24 degree and 26 degree open chamber heads, naturally aspirated
Bore 4.500 in
Size STD, standard bore for this part family (oversizes are -030 and -060)
Stroke 4.000 in
Rod Length 6.385 in
Dome Volume +24.5cc (.250 in dome height)
Compression Height 1.400 in
Compression Ratio 10.60:1 with a 118.0cc chamber
Displacement 509 cubic inches
Wrist Pins Included, .990 in diameter x 2.930 in long, heavy duty .200 in wall
Ring Pack Included, 1/16 in top, 1/16 in second, 3/16 in oil
Part Number BBC5312-STD
Quantity 8 (set of eight pistons)

Shipping

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  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
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Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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