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Product Summary

  • For use with our patent pending SoloSwap® BBC mock up short block to convert to a long block mock up assembly
  • Heavy duty 12 gauge steel construction is designed to last, unlike the big block Chevy foam block with heads
  • Replicates all Mk IV, Gen V, and Gen VI BBC cylinder heads
  • Not designed for use with production BBC short block engine, though may bolt on with minor modifications
  • Includes mounting hardware to attach to SoloSwap® steel short block
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Key Specs

MFG. Part #91089661-HEADS
BrandSpeedway Motors
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Need To Know

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Return Policy

Speedway Motors 91089661-HEADS Details

  • Mock up cylinder heads for our patent pending SoloSwap® BBC mock up engine
  • Laser cut and formed from 12-gauge steel, just like the SoloSwap® short block
  • Accepts all factory and aftermarket bolt-on valve covers, headers, and intakes
  • Perfect addition to our SoloSwap® big block Chevy mock up engine short block
  • Not designed to mount to actual BBC engine blocks without modifications

Add Our Mock Up Cylinder Heads to Your Existing SoloSwap® Short Block

Our SoloSwap® mock up engine blocks are a great resource for individual builders as well as shops looking to make engine swaps easier. They provide a lightweight solution to mocking up the engine in a car that never had said engine type from the factory. Though offered in both short block and long block variants for mock up engine purposes, many of our customers purchasing the short block version of our patent pending SoloSwap® mock up block have asked us to offer the long block's mock up cylinder heads separately for use on the SoloSwap® short block replica engines customers already own. We heard you loud and clear and you can now purchase our SoloSwap® mock up long block cylinder heads separately.

Big Block Chevy Mock Up Cylinder Heads Provide Complete Long Block Mock Up Needs

Our SoloSwap® SBC cylinder heads come directly from our long block mock up engine block replica engines product. Meaning that these mock up cylinder heads will bolt directly to the mock up engine short block you already own with zero modifications, unlike plastic engines where the heads are molded directly into the long block plastic engine block. These mock up cylinder heads are not designed to bolt to actual production cylinder block castings, though with some modifications to the mounting bolt hole diameter and using the properly sized hardware, it may be possible to bolt these mock up heads to a production cylinder block casting if you wish. These are also not compatible with a foam engine block either. These mock up cylinder heads are sold in pairs and include mounting hardware compatible with the applicable SoloSwap® mock up short block.

Speedway Motors 91089661-HEADS Specifications

KEY SPECS
MFG. Part #91089661-HEADS
BrandSpeedway Motors
GENERAL
Sold in QuantityPair

Fitment

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