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Purdy Swoft · 01-08-2020, 12:05 PM

I have never had a problem of any kind with my 5.9 Brumfield heads . The 5.9 heads give a good increase in power and hill climbing ability , they will allow the engine to have an increase in top speed . The engine will run a bit cooler and I have NEVER needed to down shift on any hill as long as momentum is maintained . If I wanted to increase the power on an original type model A , I would use the 6.0 Snyder head because it appears to be original . If I was building a hot rod or speedster I would prefer the Lion head that doesn't appear original and has higher compression ratio .

01-08-2020, 12:05 PM	#12
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: High compression head choice. I have never had a problem of any kind with my 5.9 Brumfield heads . The 5.9 heads give a good increase in power and hill climbing ability , they will allow the engine to have an increase in top speed . The engine will run a bit cooler and I have NEVER needed to down shift on any hill as long as momentum is maintained . If I wanted to increase the power on an original type model A , I would use the 6.0 Snyder head because it appears to be original . If I was building a hot rod or speedster I would prefer the Lion head that doesn't appear original and has higher compression ratio .