400 Pontiac Crate Performance Engines, Pontiac Engines, Pontiac Performance

Super Performance / Great Reliability

Pontiac 400 with 450 HP engine package with Edelbrock aluminum heads can be custom designed to your specific needs. All engines can be custom painted to match your vehicle at your request. We can outfit your engine with the exclusive March Performance serpentine belt system. We can also assist you in choosing the proper transmission and stall speed converter combination for your vehicle and have it shipped directly to you as your performance crate engine is being built.

A seasoned 400 Pontiac block
Bored And Honed With Deck Plate
Mains Have Been Align Honed
Block Has Been Decked
Dura Bond Cam Bearings Installed
Brass Freeze Plug And Oil Galley Kit Installed
Block painted with 3 coats of high temp ceramic engine paint customers choice of color (have your engine custom painted to match your vehicle for an additional $300)
A Precision Ground Micro Polished Cast Iron Crankshaft
Clevite P Series Rod And Main Bearing
Set Of Eagle I-beam Connecting Rods w/ARP rod bolts
New Set Of High Performance Pistons (Speed-Pro, Keith Black, SRP, Or Mahle)
Performance Rings Hand Filed To Match Application
New three piece true double roller timing set
New Comp Cams Custom Ground High Performance Street Camshaft With A Muscle Car Chop
A Set Of Tie-Bar Hydraulic Roller Lifters
A Set Of Edelbrock Ram Air IV Aluminum Cylinder Heads
A Set Of Stainless Steel 2.11 Intake Valves
A Set Of Stainless Steel 1.66 Exhaust Valves
A Set Of High Performance Valve Springs And Retainers (To Match Camshaft)
7/16 Screw In Studs And Hardened Guide Plates
All New ARP Head Bolts
(16) Manley Chrome Moly push rods
(16) Scorpion aluminum roller rockers
Engine will be assembled with all new bolts
High volume oil pump and screen
New chrome oil pan
New chrome dip stick and tube
New timing cover
A new valley pan
Professional Products performance balancer
Fel-pro performance gaskets
The complete rotating assembly will be balanced
Edelbrock Performer RPM intake manifold
New chrome thermostat housing
Edelbrock carburetor w/ electric choke
New chrome air cleaner
MSD Pro-Billet distributor
MSD Blaster II coil and bracket
MSD 6AL Ignition Control Box
(8) Auto-Lite spark plugs
Custom fit Taylor 8mm ignition wires (color of choice black, red, blue, yellow, green, orange no extra charge)
High flow water pump
New set of chrome valve covers
New chrome breather
Fel-Pro Performance Gaskets
Flex plate (for auto transmission)
Engines are photo documented during the building process so you can see the quality of parts and workmanship that goes into your engine
Each engine is live run tested, timing set and carburetor adjusted for optimum performance
We video tape your live run engine and send you a copy

March Performance

Alt, & PS Serpentine Kit

Add $1,550 To Base Price

March Performance

Alt, PS, & AC Serpentine Kit

Add $1,950 To Base Price

Whether your vehicle is a hot rod, street car, race car, or even a tow truck, here at Proformance Unlimited we are here to help design and build the combination that best suits your vehicles needs. Please browse our engine combinations listed below or custom design one of your own. Proformance Unlimited is best known for our precision custom designs. From that special built stroker engine to that turn-key drop in ready crate engines, call Doug or Steve we will be happy to answer any of your questions.

All engines are custom built to order for total customer satisfaction

Credit cards accepted

Call us today for a quote

1-800-267-3940

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PROFORMANCE UNLIMITED INC. RESERVES THE RIGHT TO MAKE CHANGES IN DESIGN OR TO MAKE ADDITIONS TO OR IMPROVEMENTS UPON ANY OF ITS PRODUCTS AT ANY TIME WITHOUT INCURRING ANY OBLIGATION WHATSOEVER TO INSTALL THE SAME OR IMPROVEMENT UPON PRODUCTS PREVIOUSLY MANUFACTURED. OCCASIONALLY DEPENDING ON AVAILABILITY, PARTS MAY BE SUBSTITUTED THAT WILL NOT EFFECT PRICE, PERFORMANCE, APPEARANCE OR QUALITY OF THE PRODUCT.