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Racing Aluminum - BBC PRO THUNDER - BIG BLOCK CHEVY

Key features include:

Rolled over valve angles, std or raised exhaust ports, optional open chamber heart shaped combustion chambers As cast ports, competition multi angle valve job or full CNC ported. Complete assemblies available with stainless or titanium valves.  Pro Thunder heads are also available bare or as complete kits. High grade aluminium and cast iron for maximum strength Improved valve guide material for tighter tolerances and extended durability Hardened valve seats for unleaded fuels or severe duty operation Improved water jacket design for greater thermal conductivity and reduced risk of detonation. Optimal port design for greater flow and enhanced dynamics Unique multi angle seat design for increased horsepower Spring seats cut for performance springs Revised chamber design for excellent combustion thermodynamics with enhanced fuel efficiency.

 

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