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Top Street Performance Angle Plug Aluminum Cylinder Head Chevrolet Small Block - JM4100
Top Street Performance Angle Plug Aluminum Cylinder Head Chevrolet Small Block - JM4100 - Image 5 Top Street Performance Angle Plug Aluminum Cylinder Head Chevrolet Small Block - JM4100 - Image 2 Top Street Performance Angle Plug Aluminum Cylinder Head Chevrolet Small Block - JM4100 - Image 3 Top Street Performance Angle Plug Aluminum Cylinder Head Chevrolet Small Block - JM4100 - Image 4 Top Street Performance Angle Plug Aluminum Cylinder Head Chevrolet Small Block - JM4100 - Image 5
If you're looking to rebuild your old Small Block Chevy powerplant, you can't go wrong with a set of performance cylinder heads. TSP's heads are cast from premium aluminum for improved weight and heat management over the old iron. They are engineered and CNC-ported for maximum horsepower and torque.

This bare assembly is a great starting point for a performance engine build. It's designed for maximum flow and performance in the hands of a skilled builder or machine shop. It features a thick deck to help resist warping and comes with threaded bolt holes on the ends for an easy install.

TSP cylinder heads are sold individually as bare assemblies. To achieve maximum performance, it is recommended that a licensed engine builder or machine shop coordinate matching short block and engine internals.

Specifications:
  • Intake Runner: 198cc
  • Combustion Chamber Volume: 64cc
  • Combustion Chamber Style: Heart
  • Cylinder Head Material: Aluminum
  • Cylinder Head Finish: Natural
  • Assembled: No
  • Intake Valve Size: 2.02"
  • Exhaust Valve Size: 1.60"
  • Valve Stem Diameter: 11/32"
  • Valve Guide Material: Bronze
  • Intake Port Size: 2.10" x 1.18"
  • Exhaust Port Size: 1.4" x 1.4"
  • Intake Port Shape: Rectangle
  • Exhaust Port Shape: Square
  • Intake Port Location: Standard
  • Exhaust Port Location: Standard
  • Maximum Spring Diameter: 1.625"
  • Exhaust Crossover: No
  • Spark Plug Style: Angle
  • Weight: 19 lbs (per head)
  • Quantity: Sold Individually
Fitment:
  • CHEVROLET SMALL BLOCK V8 GEN. I
    • 4.3 L / 262
    • 4.3 L / 265
    • 4.4 L / 267
    • 4.6 L / 283
    • 4.9 L / 302
    • 5.0 L / 305
    • 5.0 L / 307
    • 5.4 L / 327
    • 5.7 L / 350
    • 6.6 L / 400
Notes:
  • Fits perimeter-bolt valve covers and pre-Vortec intake manifolds
  • Cylinder head sold individually
Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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