CP Pistons Bullet Series Forged Piston Set - Ford 460 Big Block 521ci 4.390 Bore (+0.030) - Set of 8

CP Pistons Bullet Series Forged Piston Set - Ford 460 Big Block 521ci 4.390 Bore (+0.030) - Set of 8

CP Pistons SKU: CPPBBF6205-030B
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CP Pistons Bullet Series forged 2618 aluminum flat top pistons for a 521ci Big Block Ford 460 build, sized for a 4.390 in bore (0.030 over) with a 4.300 in stroke and 6.800 in rods. The flat top crown has two valve reliefs for a -6 cc volume, matched to 75 cc 460 iron heads, with a 1.350 in compression height. Each set of 8 includes chromoly wrist pins with wire locks and rings. Made to order and non-cancelable once ordered.

Specifications

Type Forged flat top piston set (CP Bullet Series)
Application Big Block Ford 460, 521ci, 460 iron heads (75 cc chamber)
Material Forged 2618 aluminum
Size 4.390 in bore (+0.030 in over stock 4.360)
Stroke 4.300 in
Rod Length 6.800 in
Compression Height 1.350 in
Crown Flat top, 2 valve reliefs, -6 cc
Wrist Pin .990 x 2.750 in chromoly, wire locks
Ring Pack 1/16 x 1/16 x 3/16 in
Piston Weight 561 g
Quantity Set of 8
Part Number BBF6205-030B
Ordering Made to order, non-cancelable

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • 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.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

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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