QUALITY PARTS.
HIGH-CALIBER BUILD.
Offer Valid 1/1/24 to 12/31/24
$250
A modern take on the L88
The L88 427 was the ultimate expression of Chevy’s production Big-Block power, combining a rigid iron cylinder block with lightweight aluminum cylinder heads.
PART NO. 19331572
480 HP @6000 RPM
490 LB-FT @3800 RPM
A classic recreated
The ZZ427/480 features our latest-generation block casting with four-bolt main caps, an all-forged rotating assembly, and a hydraulic roller camshaft instead of the original L88’s flat-tappet cam, for greater drivability and a broader performance range.
Connect & Cruise Powertrain System
Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.
†Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. Parts only when consumer repaired or installed in non-highway application. Coverage limited to defects in material and/or workmanship of the specific part only. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice.
††Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Mail-in rebate offer not available with other offers. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Rebates must be submitted by 1/31/25. Rebates may be submitted over two invoices within 120 days of each other. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/24 to 12/31/24.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details. Rebate form and details available at chevrolet.com/performance/offers.
Installation Guides
Find everything from vital data about your engine’s capabilities to how to install it into your build.
ZZ427-480 Tech Specs
- Part Number: 19331572
- Engine Type: Chevy Big-Block V-8
- Displacement (cu. in.): 427 (7.0L)
- Bore x Stroke (in.): 4.250 x 3.750
- Block (P/N 19170538): Cast-iron with four-bolt main caps
- Crankshaft (P/N 19171620): Forged steel
- Connecting Rods (P/N 19211226): Forged steel
- Pistons (P/N 19171618): Forged aluminum
- Camshaft Type (P/N 12366543): Hydraulic roller
- Camshaft Lift (in.): .527 intake / .544 exhaust
- Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
- Cylinder Heads (P/N 19211799): Aluminum oval port, 110-cc chambers
- Valve Size (in.): 2.190 intake / 1.880 exhaust
- Compression Ratio: 10.1:1
- Rocker Arms (P/N 19210726): Aluminum roller style
- Rocker Arm Ratio: 1.7:1
- Distributor (P/N 19212081): HEI type
- Carburetor (P/N 19170093): 770-cfm
- Water Pump (P/N 19168602): Aluminum short-style
- Spark Plugs and Wires: Included
- Recommended Fuel: Premium pump
- Ignition Timing: 36° Total @ 4,000 rpm
- Maximum Recommended rpm: 6400
- Balanced: Internal
Mobil 1 is now The Official Motor Oil of Chevrolet Performance.