zl1 build

Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member

http://www.enginelabs.com/engine-tech/engine/the-427ci-big-block-build-a-21st-century-zl1/
ASK LOTS TO QUESTIONS & SHOP CAREFULLY,
the better aftermarket aluminum blocks are both comparatively very expensive and noticeably lighter weight,
but do your research, as theres a big BIG difference in the structural rigidity, and strength, between the thicker aluminum blocks
designed for serious racing
and those designed mostly to reduce weight, and duplicate the original iron block dimension-ally

21st Century ZL1 Big-Block Parts List:


  • 12370850: Chevrolet Performance aluminum ZL1 Block – $5,265.95
  • CS524BB: King Bearings camshaft bearings – $29.97
  • MB-556SI: King Bearings main bearings – $35.97
  • CR808SI: King Bearings rod bearings – $25.97
  • 4-454-3766-6135-C: Scat forged-steel crankshaft – $869.97
  • 2-ICR6135: Scat forged H-beam rods – $484.97
  • 158830-8: SRP forged pistons – $658.24
  • S100S8-42805: JE piston rings – $106.49
  • K11-573-5: Comp Cams K-kit – $585.97
  • M77: Melling std-volume oil pump – $43.97
  • IS77: Melling oil pump drive – $15.97
  • 18-301: Canton oil pick up tube – $21
  • 15-300: Canton oil pan – $130
  • 90036: Professional Products SFI harmonic balancer – $159.97
  • C5432-027: Cometic MLS head gaskets – $161
  • 12363408: Chevrolet Performance L88 replacement heads – $1,619.94
  • (Alternative) 60549: Edlebrock Performer RPM Heads – $1,485.10
  • 10872-8: Manley intake valves – $124.97
  • 10881-8: Manley exhaust valves – $121.97
  • 135-3601: ARP head bolt kit – $80.97
  • 4806: Comp Cams guide plates – $39.97
  • 135-7101: ARP 7/16-inch rocker studs – $46.97
  • 7154-16: Comp Cams 3/8-inch pushrods – $111.97
  • 1411-16: Comp Cams rocker arms – $153.97
  • 19131359: Chevrolet Performance intake manifold – $282.97
  • 12342093: Chevrolet Performance valve covers – $123.97
  • 93440806: Chevrolet Performance HEI distributor – $162.09
  • 12368384: Chevrolet Performance ignition wire set – $95.57
  • 0-4781C: Holley 850 cfm double pumper – $523.95
  • 12-454-11: Holley 110 gph mechanical fuel pump – $101.95
  • 3704817: Chevrolet Performance fuel pump pushrod – $10.73
  • 1514: Mr. Gasket fuel pump mounting plate – $11.19
  • 535-9801: ARP engine bolt kit – $123.93
  • 23-7001: ARP oil pump stud kit – $5.71
  • 135-2501: ARP balancer bolt kit – $25.32
  • Approximate machining costs – $500
  • TOTAL: $12,728.69 – 12,863.52
Still to Come: Chevrolet Performance ZZ427

The third and final installment of this series on 427 big-blocks will cover the current engine available from Chevrolet Performance: the ZZ427. This modern version of the iron-block L88 offers a complete performance package for today’s enthusiast with street performance in mind. The pump-gas friendly crate engine has many similar traits to its predecessor, with some modern day updates. Stay tuned.
 
Last edited:
Back
Top