Complete Intake Manifold Choke Tube Block Off Kit

Professional choke tube block-off plate with complete hardware system for Oldsmobile small block engines. Precision machined from aircraft-grade aluminum with all necessary hardware included. Perfect for engine builds, restorations, and performance upgrades with proper crankcase ventilation.

Engine Compatibility

Fits: Oldsmobile Small Block Engines Only

Oldsmobile Small Block Applications:

Note: Does NOT fit Oldsmobile big block engines (400, 425, 455) - different deck height and intake manifold design.

Vehicle Applications

Product Features

Technical Specifications

Installation Guidelines

Professional Installation Tips:

  1. Remove existing choke tube system completely
  2. Clean intake manifold mounting surface thoroughly
  3. Verify you have an Oldsmobile SMALL BLOCK engine (260-403)
  4. Apply recommended thread sealant to bolts
  5. Mount plate with appropriate torque specification
  6. Verify proper crankcase ventilation operation

Compatible with:

NOT Compatible with:

Quality Guarantee

Mad4Metal Standards:

Why Choose Mad4Metal:

Applications

Frequently Asked Questions

Q: Will this fit my Oldsmobile 403?
A: Yes! The 403 is an Oldsmobile small block engine (1977-1979) and this plate is designed specifically for it.

Q: Will this fit my Oldsmobile 455?
A: No, the 455 is a big block engine with different intake manifold dimensions. This plate only fits small block engines (260-403).

Q: How do I know if I have a small block or big block?
A: Small blocks: 260, 307, 330, 350, 403. Big blocks: 400, 425, 455. Check your engine displacement or VIN code.

Q: What tools are needed for installation?
A: Basic hand tools. Wrenches for old choke tube removal, hex keys for new plate installation.

Q: Works with aftermarket intake manifolds?
A: Yes! Works with Edelbrock, Weiand, and other aftermarket Olds small block intake manifolds.

Q: Made in USA?
A: Yes, designed, machined, and assembled in Coeur d'Alene, Idaho.

PROUDLY MADE IN USA - Supporting American Manufacturing