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Discussion Starter · #1 ·
what headgasket are you guys running with a similar combo...408w afr225s and at most a 250 shot...

Neither the block or heads are o-ringed....

I ran a 9331-PT on my 359 and never had a problem...but the 408 is going to make a just a wee bit more power.

Your opinions are appreciated!
 

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H&H Racing
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we have a couple of 408s one with vic jrs one with track 1s both with comectics or felpro mls,and we run 400-500 on them with no probs
 

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HG

Cometic or Fel Pro MLS.
 

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Just use the 9333PT-1's. I have used them for years on my 408 and never had a problem. I sprayed about the same and had 1 full point more compression.
 

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13.5.1 sbf with a bunch of spray with cometics. Never had an issue. I've reused these gaskets 4 times already and still have no problems.
 

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curious

Cometic not fel pro


Just curious, why not the Fel Pro MLS? I have had zero issues with mine even when I tried spraying 450.
 

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we run the cometics on ours. we were real happy with that combo.its a great nos head for out of the box !
 
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