Pontiac 421

GPTKB entity

Statements (52)
Predicate Object
gptkbp:instanceOf automobile engine
gptkbp:compressionRatio 10.75:1
gptkbp:coolingSystem water-cooled
radiator cooling system
gptkbp:cylinderCount cast iron
gptkbp:displacement 6.9 liters
421 cubic inches
gptkbp:drivetrain OHV (Overhead Valve)
16 valves
gptkbp:engine cast iron
approximately 600 lbs
popular among car collectors
cast iron block
longitudinal front-engine
iconic muscle car engine
distinctive_V8_rumble
used_in_various_Pontiac_models
gptkbp:engineConfiguration naturally aspirated
over 100,000 units
gptkbp:engineType overhead valve
SAE_10W-30_recommended
gptkbp:firstHeld 1966
gptkbp:fuel_capacity wet sump
gptkbp:fuelType carbureted
https://www.w3.org/2000/01/rdf-schema#label Pontiac 421
gptkbp:introduced 1961
gptkbp:manufacturer gptkb:Pontiac
gptkbp:notableEvent gptkb:Pontiac_GTO
gptkb:Pontiac_Bonneville
gptkb:Pontiac_Catalina
gptkbp:performances high torque output
known for durability
regular oil changes recommended
carbureted
Super Duty 421
popular in classic car restorations
gptkbp:powerOutput up to 425 horsepower
gptkbp:productionYears 1961-1966
gptkbp:racingSeries gptkb:Trans-Am_Series
gptkb:NASCAR
drag racing
gptkbp:related_engine gptkb:Pontiac_455
gptkb:Pontiac_V8
gptkb:Pontiac_389
gptkbp:successor gptkb:Pontiac_428
gptkbp:targetMarket performance cars
gptkbp:torque up to 462 lb-ft
gptkbp:tuning performance upgrades available
high-performance tuning available
multiple carburetor setups available
gptkbp:type gptkb:V8_engine
gptkbp:updates aftermarket parts available