Features:

• 6-bolt-per-cylinder bolt pattern
• LS7-style rectangle port design
• 12-degree valve angle; minimum 4.100" bore
• 70cc “as-cast” combustion chambers
• Uses LS7 rocker arms/LS7 bolts
• 397 cfm @ 0.700" intake, 230 cfm @ 0.700" exhaust

19419196 supersedes 19354242

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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