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Mast 245cc Cathedral Heads?

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Old 09-30-2013, 09:00 PM
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Default Mast 245cc Cathedral Heads?

I've searched and can't find much information on these. Has anyone here used the Mast 245cc cathedral port heads? This is the only head they do not have flow numbers listed for. They have 2.165 / 1.60 valves. They say they will work on a 4" bore+

I have a Trailblazer SS LS2 that is a cam only setup with spray. I spray between 200-300hp. I want to do heads/cam swap for now with future goal of building a stroker 416 or 427 and be able use the same heads again.

I've considered TFS heads but looks like the largest I can run on my stock 4" bore is the 225's, at least this is what I've read? I know the 225's will work well on a stroker, but something in the 235 or 245cc range would probably be better?
Old 09-30-2013, 09:29 PM
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tfs235's ..... port would work out good an save $. smaller port = Tq for a '06 TBSS 4300lbs
Old 09-30-2013, 09:37 PM
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Originally Posted by lil john
tfs235's ..... port would work out good an save $. smaller port = Tq for a '06 TBSS 4300lbs
Will the tfs 235 work with my current 4" bore? In their specs it says for 4.030+bore, or is this just a recommended spec?
Old 09-30-2013, 09:43 PM
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Yeah you may-be right call TEA heads....But 225's can be reworked in the future for a larger engine
Old 10-01-2013, 10:18 AM
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Id run a set of Tea 245s or the aforementioned Mast 245s
Both are just right CSA wise for a 410" in engine
Either would work nicely for your plans
Good luck
Old 10-02-2013, 01:47 AM
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run WCCH 245s



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