Universal Fuel Pump Block Off Plate - F157

Premium CNC Machined Block Off Plate for Electric Fuel Pump Conversions

Universal Compatibility

Fits Most American V8 Engines with Standard 2-Bolt Pattern & 3/8-16 Thread Bolts:

• Chevrolet Small Block: 262, 283, 305, 307, 327, 350, 400 (1958-1991+)
• Chevrolet Big Block: 396, 402, 427, 454, 502 (1965-1991+)
• Ford V8 Engines: 221, 260, 289, 302, 351W, 390, 406, 427, 428, 429, 460 (Except 351C/M & 400M)
• Chrysler/Mopar: 273, 318, 340, 360, 383, 400, 413, 426, 440 (Small & Big Block)
• AMC V8 Engines: 290, 304, 343, 360, 390, 401 (1966-1991)
• Early Buick V8: 364, 401, 425 Nailhead engines (1957-1966)
• Early Pontiac V8: 326, 350, 389, 400, 421, 428, 455 (pre-diamond pattern)
• Early Oldsmobile V8: 260, 307, 330, 350, 403, 455 (pre-diamond pattern)

Vehicle Applications

Chevrolet Models:

• Camaro (1967+)
• Chevelle/Malibu (1964+)
• Nova (1962+)
• Corvette (1958+)
• Impala/Caprice (1958+)
• El Camino (1964+)
• Pickup Trucks (1960+)

Ford Models:

• Mustang (1964.5+)
• Fairlane/Torino (1962+)
• Galaxie (1960+)
• Thunderbird (1958+)
• F-Series Trucks (1961+)
• Bronco (1966+)

Chrysler/Mopar Models:

• Challenger (1970+)
• Charger (1966+)
• Cuda/Barracuda (1964+)
• Dart (1963+)
• Duster (1970+)
• Road Runner (1968+)
• Ram Trucks (1972+)

AMC/Jeep Models:

• Jeep CJ5, CJ7, CJ8 with V8 (1972-1986)
• Jeep Cherokee/Wagoneer with V8 (1974-1991)
• AMC Javelin/AMX (1968-1974)
• AMC Rebel/Matador (1967-1978)
• AMC Concord/Spirit with V8 (1978-1983)

Early GM Models (Pre-Diamond Pattern):

• Buick Skylark, Riviera, Electra (1957-1966)
• Pontiac GTO, Firebird, Bonneville (pre-1967)
• Oldsmobile 442, Cutlass, 88 (pre-1967)

Product Features

• ✅ CNC Machined from 6061-T6 Aircraft Aluminum
• ✅ Universal 2-Bolt Standard Pattern
• ✅ 3/8-16 Thread Bolts Included
• ✅ Leak-Free Design - No Gasket Required
• ✅ Precision Polished Finish
• ✅ Stainless Steel Hardware Included
• ✅ Made in USA - Idaho Manufactured
• ✅ 20+ Years Proven Performance

Complete Kit Includes

• (1) Precision machined universal block off plate
• (2) 3/8-16 stainless steel socket head cap screws
• Detailed installation instructions
• Technical support

Why Upgrade to Electric Fuel Pump?

Eliminates Common Problems:

• Vapor lock issues
• Inconsistent fuel pressure
• Hard starting when hot
• Fuel pump diaphragm failures
• Carburetor flooding

Performance Benefits:

• Reliable fuel delivery at any angle
• Consistent pressure for carburetors
• Ready for fuel injection upgrades
• Improved racing/performance applications
• Better off-road capability

Technical Specifications

• Part Number: F157
• Material: 6061-T6 Billet Aluminum
• Dimensions: 2-11/16" H × 2-5/8" W × 15/32" Thick
• Weight: 1.8 oz
• Mounting Pattern: Universal 2-Bolt Standard
• Thread Size: 3/8-16 (most American V8s)
• Hardware: (2) 3/8-16 Stainless Steel SHCS
• Finish: Machine Polished
• Origin: Made in USA

Installation Notes

Professional Installation Tips:

• Remove mechanical fuel pump completely
• Verify 2-bolt standard pattern with 3/8-16 threads
• Clean mounting surface thoroughly
• Apply recommended thread sealant (specifications included)
• Torque bolts to 20-25 ft-lbs in cross pattern
• No gasket required - sealant only

Compatible with:

• Holley carburetors (2-barrel & 4-barrel)
• Edelbrock carburetors
• Rochester Quadrajet carburetors
• Carter AFB/AVS carburetors
• Autolite carburetors
• TBI fuel injection systems
• EFI conversions
• All electric fuel pump upgrades

IMPORTANT: What This Plate DOES NOT Fit

• ❌ Late GM BOP Engines: Buick 231 V6, later Pontiac/Olds with diamond pattern (use F158)
• ❌ Ford 351 Cleveland & 400M: Different mounting configuration
• ❌ AMC 6-Cylinder: 232, 258 I6 engines use diamond pattern (use F158)
• ❌ Engines with 5/16-18 threads: Late GM BOP diamond pattern (use F158)
• ❌ Non-standard patterns: Round, oval, or unique mounting shapes

Always verify your engine has the standard 2-bolt pattern with 3/8-16 threads before ordering!

Engine Identification Guide

How to Identify Your Engine Pattern:

• Look at your fuel pump: Count the bolts and measure thread size
• Standard Pattern (F157): 2 bolts, 3/8-16 threads, rectangular/oval mounting area
• Diamond Pattern (F158): 2 bolts, 5/16-18 threads, diamond-shaped mounting area
• When in doubt: Contact us with your engine info for compatibility verification

Quality Guarantee

Mad4Metal Standards:

• CNC machined to aerospace tolerances
• Aircraft-grade 6061-T6 aluminum
• Corrosion resistant finish
• Racing-proven durability
• American engineering and manufacturing

Why Choose Mad4Metal:

• 20+ years in high-performance racing
• Family-owned Idaho business
• Expert technical support
• Premium materials only
• Precision manufacturing

Shipping & Warranty

• Free US Shipping
• Ships within 1-2 business days
• Manufacturing defects covered
• Technical support included
• Satisfaction guaranteed

Frequently Asked Questions

Q: How do I know if this will fit my engine?
A: Check your fuel pump mounting area. You need a standard 2-bolt pattern with 3/8-16 threads. Most American V8s from the classic era use this pattern.

Q: Will this fit my late-model Buick V6 or Pontiac engine?
A: No. Late GM BOP engines (Buick 231 V6, later Pontiac/Olds) use the diamond pattern with 5/16-18 bolts. You need our F158 plate for those applications.

Q: What's the difference between F157 and F158?
A: F157 uses 3/8-16 bolts for most American V8s. F158 uses 5/16-18 bolts for GM BOP diamond pattern engines and AMC I6 engines.

Q: Will this fit Ford 351 Cleveland or 400M?
A: No. Ford 351C/M and 400M engines have a different mounting configuration and require a specific plate for those applications.

Q: Do I need a gasket?
A: No, gasket not required. Use proper thread sealant as detailed in included instructions.

Q: Works with fuel injection?
A: Absolutely! Perfect for TBI, EFI, or any electric fuel pump conversion on supported engines.

Q: What tools needed?
A: Basic hand tools. Socket for old pump removal, 3/8" hex key for installation.

PROUDLY MADE IN USA - Supporting American Manufacturing