Images for illustration purposes only, actual engine may vary.
Sample photo of our clean room above.
Custom Built Engines from Mild to Wild! click here to view our Engine range
'Bowtie Clobber' Small Block Chevrolet 350ci. Turn-Key Engine 420HP
Alum Cyl. Heads w/Cast Rotating Assembly & All New Parts
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Engine Component SpecificationsHere at Superformance for more than 36 years; we have been building performance engines using only premium "brand name" parts. To make things simple for our customers we offer an extensive range of 'Turn Key Engines' meaning that after installing one of our 'Turn-key's' you only need to connect up your radiator, transmission, fuel and power and you are ready to drive.
All of our Turn key Engines are run in and come with a metal stand for storage and transport.
|Air Cleaner:||As per Dress up Kit|
|Alternator Bracket:||V-Belt As per Dress up Kit|
|Bearings:||New Cam, Main and Rod - Clevite/King/Durabond|
|Bolts:||ARP Head Bolts, Gardener Westcott Dress up optional upgrade|
|Distributor:||MSD Performance HEI|
|Distributor Clamp:||As per Dress Up Kit|
|Engine Block:||GM Four Bolt|
|Expansion Plug Set:||Sealed Power|
|Flywheel: (extra only)||Brand Varies by Application|
|Fuel Pump Blank Off:||Redline|
|Gasket Kit:||Felpro Performance|
|Ignition Leads||MSD Performance|
|Oil Pan:||Standard L/H Dipstick|
|Oil Pump & Fittings:||Mellings|
|Paint:||VHT Engine Enamel - Your Choice of Colour|
|Pistons:||Flat Top Hypereutectic|
|Piston Rings:||Hastings Moly|
|Pulleys:||V-Belt Pulley System; Contact us to upgrade to Serpentine or Tru Trac|
|Rocker Arms:||Crow Roller Rockers|
|Starter Motor:||JAS or Ashdown Ingram|
|Thermostat:||Stant 160° F|
|Thermostat Housing:||As per Dress Up Kit|
|Timing Chain:||Cloyes/Romac Double Row|
|Timing Cover:||As per Dress Up Kit|
|Valve Covers||As per Dress Up Kit|
|Valve Cover Breather||As per Dress Up Kit|
|Water Pump:||US Motorworks/Airtex Mechanical Short or Long|
Brands subject to change due to availability, Packages shown are based on common engine builds we have done in the past, if there is something else you are after then contact us.
- Original Engine Manufacturer : Chevrolet
- Displacement : 350 cubic inches / 5.7L
- Horsepower nominal : 300 HP
Dimensions for Transport
Optional extra upgrade details belowDress up Kit - Chrome ( on engine as default, unless an upgrade is selected)
includes: Chrome Smooth Air Cleaner + Chrome Smooth 'Tall' Valve Covers + Chrome Smooth Breather
Dress up Kit - Alloy
includes: Polished Ball Milled 14" Round Aluminium Air Cleaner + Polished Ball Milled Aluminium Valve Covers + Polished Aluminium Breather
Dress up Kit - Proform's licensed GM Black Performance Kit (Black Powdercoating with red embossed Chevrolet logo & Bowtie emblems)
includes: Air Cleaner + Tall Valve Covers + Timing Cover + Breather + Wing Nuts + Hold Down Tabs
Dress up Kit - Superformance Black-Out Special
Our very own special edition hand chosen dress up option includes: The Proform licensed GM Black performance Kit as above + MSD's all new Black edition Distributor + Aeroflow Black Distributor Clamps + Lokar Midnight series Black Dipstick + Edelbrock Black Manifold + Aeroflow Black Thermostat housing + Aeroflow Black Gilmer Kit
If there is an optional upgrade that you would like but do not see here, please contact us directly.
Because there are so many different dress up combinations, if you would like something specifically let us know!