- Fully Machined & Blueprinted Inhouse At Pavtek Since 1989
- Dyno Run In And Tuned For Best Performance & Reliability
- Packaged Priced – Heavily Discounted
- Dyno Proven ( Know Before You Buy Exactly How Much Power You’re Purchasing )
- 12 Months Unlimited Kilometers Warranty
- Australia Wide Economical Shipping
- In Stock NOW And Ready For Immediate Shipping
- No waiting months and hearing excuse after excuse as to why your engine still isn’t ready
APPLICATION:
351 WINDSOR STROKER PACKAGE
427 CUBIC INCHES
Silver Accelerator Engine 625+ HP
| Pavtek Part # | L427W403HR |
| IN Stock Status | In Stock Now |
| GENERAL TECH. INFO | |
| Cubic Inches |
427 |
| Ft/lbs @ RPM |
571/ 5150 (29035) |
| Horsepower @ RPM |
631 / 6950 (29035) |
| Fuel Required |
PULP 98 Octane |
| Camshaft Type |
Hydraulic Roller |
| Extractors Required |
2″” 4 into 1 (SPD F86564) |
| Minimum Converter RPM |
4750 ( Minimum WOT ) |
| Best Converter RPM |
5100 |
| Maximum RPM Shift |
7000 |
| PARTS |
|
| INCLUDED: | |
| BLOCK |
|
| Block Supplied Outright |
Yes |
| Block Supplied | Aeroflow HD |
| Block CNC Machined | Yes – Inhouse |
| Main Caps | Steel / All 5 Caps Are 4 Bolt |
| Welsh Plugs | Yes – Brass |
| CYLINDER HEADS | |
| Head / Brand |
DRP |
| Head Material |
Alloy |
| Head Porting Included |
Yes |
| Head Porting / Intake |
Yes 100% 5 Axis Inhouse |
| Head Porting / Exhaust | Yes 100% 5 Axis Inhouse |
| Head Porting / Chambers | Yes 100% 5 Axis Inhouse |
| Valve Material / Brand | Stainless Steel /Ferrea |
| Retainer Material / Style | Chrome Moly / 7 Degree LW |
| Valve Locks / Brand | 7 Degree |
| Valve Stem Seals – Style | Viton Crow |
| Valve Spring Style Used | Pac Lite Weight Spring Package |
| Valve Spring Locaters | Yes |
| ROTATING ASSEMBLY |
|
| Crankshaft Brand/ Material | DRP / 4340 Forged Steel |
| Piston Brand / Material | Srp / Forged |
| Piston Type | Flat Tops |
| Piston Rings Brand | Speed Pro – Hastings |
| Piston Ring Widths | 1/16 1/16 3/16 |
| Conrod Brand / Length | Scat / 6.250″ |
| Conrod Beam Style | H-Beam |
| Conrod Bolts Material | ARP 8740 |
| Conrod Bolt Diameter | 7/16 |
| Harmonic Balancer / Brand | PowerBond Race |
| Engine Balance | Internal Front & Rear |
| BEARINGS |
|
| Main Bearings | ACL H-Race Series |
| Big End Bearings | ACL H-Race Series |
| Cam Bearings | Dart – Coated |
| CAM, LIFTERS |
|
| Cam Type / Brand | Hyd. Roller / Custom Pavtek |
| Lifter Type / Brand | Johnson Vertical Tie Bar |
| TIMING SET | |
| Timing Set Brand /Type | Rollmaster/ 9 Key |
| Camshaft Retaining | Mellings |
| INTAKE MANIFOLD | |
| Intake Manifold Brand | Edelbrock |
| Intake Manifold Style | Single Plane/ Super Victor |
| Intake Manifold Porting | Yes – CNC Ported |
| VALVE TRAIN |
|
| Roller Rockers Brand | Scorpion |
| Roller Rocker Type | 7/16 Stud Mount |
| Roller Rocker Ratio | 1.65 |
| Pushrods Brand | Trend 4340 Chrome Moly |
| Pushrods Specs | .080″ Wall / 1 Piece / 210 Radius |
| Guide Plates – Brand | Comp Cams/DRP Adjustable |
| GASKETS | |
| Head Gaskets Brand | Felpro O-Ring |
| Intake Gaskets | Felpro 1262 |
| Rear Main Seal | Felpro Competition Style |
| OILING SYSTEM | |
| Oil Pan | Moroso HV |
| Oil Pump Pickup | Moroso |
| Oil Pump | Mellings |
| Oil Pump Driveshaft | ARP HD |
| FASTENERS & DRESSUP |
|
| Head Bolts / Head Studs | Aeroflow Bolt Kit |
| Main Bolts / Main Studs | Arp Main Studs |
| Rocker Studs | Arp HD |
| Intake Manifold Bolts | Arp / 12 Point |
| Harmonic Balancer Bolt | Arp / 12 Point |
| Rocker Covers | Aeroflow Sheet Metal / Black |
| Timing Case Cover | New Edelbrock/Pioneer |
| Timing Pointer | Aeroflow Billet Adjustable |
| TURN KEY EXTRAS INCLUDED |
|
| Engine Run In On Dyno | Yes |
| Engine Tuned On Dyno | Yes |
| Spark Plugs Supplied | Yes |
| Oil Filter & Oil For Dyno | Yes |
| Oil Filter Mount | Dart – Yes |
| Carby | 950 Cfm 4150 SA Street HP Carby |
| Carby Spacer | Pavtek Billet 2″ Ported |
| Carby Bolts | ARP studs |
| Ignition System | Ice Complete System – 128 curves |
| Ignition Rev Limiter | Yes ICE / 1 Step |
| Distributor Clamp Supplied | Yes – Pavtek |
| Fuel Pump Block Supplied | Yes – Pavtek |
| Dipstick Supplied | Yes – Moroso |
| Bellhousing Dowels Supplied | Yes |
| Coolant Bleed Kit | Yes |
| Aeroflow Engine Cradle On Wheels | Yes |
| Pavtek Free T-Shirt | Yes – Specify Size When Placing Order |
| Pavtek Rear Window Decal | Yes – 500 x 162MM |
| LUD | 24/02/26 |
| Package Price: | $29,900 |
| JOB / BUILD # | 29035 |
PRICE UD 24/02/2026
Price Does Not Include Freight Charges
If Ordered Online We Will Contact You With A Price For Freight ASAP
Image May Be Shown With Optional Available Extras
PLEASE CALL 03 9408 7726 IF YOU NEED ASSISTANCE
OR EMAIL YOUR ENQUIRY TO pavtek@iprimus.com.au