Originally Posted by
doubletap
I used those for the OFNA RTR engine, and its noticeably cooler that the stock head( it was sold and it makes me turn the engine leaner until it broke the conrod). bling factor, cooling factor is great, but its always good to have the STOCK cooling head since its a part of the design of a specific engine. I guess.
and yet you don't want your engine that cold.
tisk tisk haha ... now your like me