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Vehicle Info NeededTOP STREET PERFORMANCEPART NUMBER: 743-JM4100
JM4100 Chevy Small Block Angle Plug Aluminum Cylinder Head, Single
$49382
Ships on 09/09/2026
Lowest Price GuaranteeChevy Small Block Angle Plug Aluminum Cylinder HeadSingle
Top Street Performance JM4100 Features:
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.Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCylinder Head
BrandTOP STREET PERFORMANCE
Package Height1.0
Package Width6.0
Package Length18.0
Weight4.0 PG
Vendor Part NumberJM4100
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
