*Shown With Optional Upgrades

Gen III 345CI Hemi 450HP Crate Engine

Estimated Cost $16,195.00

Pay a 50% deposit per item

Proformance Unlimited offers a full line of Gen III Hemi based turn-key drop in ready crate engines designed for hot rods and muscle cars. Where new school performance meets old school looks. We have developed a complete line of fuel injected Late Model Hemi based power plants to fit almost everyone’s needs. If you don’t see something you want give us a call and we will design it for you. Our vision on these engines is to bring back the really cool looks from yesteryears engines with today’s reliability.

  • Gen 3 5.7L HEMI block
  • Bored and honed with deck plate
  • Mains have been aligned
  • Block has been square decked
  • Dura Bond cam bearings installed
  • Block painted with 3 coats of high temp ceramic engine paint choice of color
  • Cast steel 3.580 stroke crankshaft
  • I-Beam connecting rods
  • Performance pistons
  • Rod and main bearing 
  • Performance rings hand filed to match application
  • The complete rotating assembly will be balanced
  • Comp Cams custom ground high performance street camshaft
  • Three-piece timing set
  • Hydraulic roller lifters
  • Chrysler performance roller lifter retainer clips and tray
  • Aluminum cylinder heads
  • Performance valve springs and retainers (to match camshaft)
  • Manley chrome moly push rods
  • Shaft mount rocker arms
  • Oil pump
  • Milodon oil pick up
  • Milodon 7Qt center sump pro touring oil pan
  • Milodon dipstick and tube
  • Gen 3 Hemi car aluminum timing cover
  • Engine will be assembled with all new bolts
  • ARP head bolts
  • Fel-Pro/Mahle performance gaskets
  • Harmonic balancer
  • Holley Snipper fabricated intake manifold
  • Holley Terminator X engine management system
  • Holley Sniper 92mm throttle Body
  • Spectre Performance conical air cleaner
  • Holley 48 lbs/hr. High impedance fuel injectors
  • Holley TPS sensor
  • Holley IAC valve
  • Holley Street fire ignition coils
  • Spark plugs
  • Water pump
  • Holley Snipper fabricated aluminum valve covers
  • Chrome breather
  • Engines are photo documented during the building process sat goes into your engine
  • Engine will be dyno tested with a starting tune – EFI system has self-tune capabilities
  • 2 Year Unlimited Miles Warranty

With all the after market parts made readily available today, we can custom design your crate engine to deliver extremely powerful street performance or off road track use. All our engines are built with precision to perform with quality and assurance you can depend on.

Proformance Unlimited we are here to help design and build the combination that best suits your knowledge level and over all experience, so your vehicle will out perform your expectations. Please browse our engine combinations listed below. Proformance Unlimited is best known for our precision custom designs. If you have any questions and would like Proformance Unlimited to build your next engine feel free to call Doug or Steve.