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Engine Kits
- Stage 4 ZR Engine Kit
- ZR2 Billet Block (bore size between 2.702" - 2.717")
- ZR2 Billet head
- ZR2 Billet head gasket (0.015. 0.021, 0.027, 0.032, 0.042, 0.060)
- ZR Billet side cover
- 2-port ZR Billet breather
- 1" Stock stroke cast crankshaft
- Hardened crank gear
- 4.475" Billet connecting rod
- Dome piston with rings, wrist pin, and clips
- ZR Billet camshaft (0.406" lift)
- Dual valve springs
- 1.437" Stainless steel intake valve
- 1.160" Stainless steel exhaust valve
- Multi-angle valve job
- Full length bronze valve guides
- CNC ported intake and exhaust ports
- 15" 3-stage coated header
- Billet intake (hardware kit included)
- 28mm Mikuni carburetor with velocity stack
- Air filter
- 3° Billet adjustable coil bracket
- Stock 3HP coil
- Billet 3HP flywheel
- Bosch spark plug
- Billet starter nut
- Billet fuel pump bracket
- Walbro fuel pump
- 10' of fuel line
- Fuel filter
- Hardware Kit
ZR Stage 4 complete block kit, capable of going 9.90 with a 325-350 lbs package at sea level.
Kit components:
BrandJR RACE CAR
Package Height6.0
Package Width16.0
Package Length16.0
Weight24.4 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
