CP Pistons Forged Piston and Ring Set, single forged piston, angled top view

CP Pistons Forged Piston and Ring Set - Toyota 4A-GE 20V, 81.5mm Bore (+0.5mm), 9.0:1 CR - Single

CP Pistons SKU: CPPSC7656-1
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This CP forged piston and ring set is a single replacement piston for the Toyota 4A-GE 20-valve engine, sized for an 81.5 mm bore (+0.5 mm oversize) at a 9.0:1 compression ratio. It has a 30.7 mm compression height, a -8.7 cc dish and a 20 mm wrist pin, and weighs 283 g. Ring end gap must be checked and set by the engine builder.

Specifications

Engine Application Toyota 4A-GE 20V
Bore 81.5 mm (+0.5 mm oversize)
Compression Ratio 9.0:1
Compression Height 30.7 mm
Dome / Dish Volume -8.7 cc
Stroke 77 mm
Rod Length 122 mm
Pin Diameter 20 mm
Ring Thickness 1.0 x 1.2 x 2.8 mm
Piston Weight 283 g
What's in the Box
  • Forged piston
  • Piston ring set
  • Wrist pin
  • Pin locks
Set Count 1
Quantity 1
Part Number SC7656-1

Documents: Piston and Ring Installation Instructions (PDF)

Is this a single piston or a set of four?

  • A single piston with its ring set.

What bore is it for?

  • An 81.5 mm bore, which is +0.5 mm oversize.

What compression ratio does it give?

  • 9.0:1.

Are the rings pre-gapped?

  • No. Ring end gap must be checked and set by the engine builder.

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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