345cc dart iron eagle head any good for boat?
#11
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But then it’s cam, intake and exhaust but pending your end goal it may or may not be worth it. JMO
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That would be a interesting dyno test, throw a set of heads on a engine that are by all means too big of runner then band aid it with various intakes, including maybe some oval ports. Ive already seen how bad a perfomer rpm can kick a Victor jrs ass on anything from about 515 down thruout majority of power band. Smitty
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hogie roll (08-14-2023)
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That would be a interesting dyno test, throw a set of heads on a engine that are by all means too big of runner then band aid it with various intakes, including maybe some oval ports. Ive already seen how bad a perfomer rpm can kick a Victor jrs ass on anything from about 515 down thruout majority of power band. Smitty
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#15
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That would be a interesting dyno test, throw a set of heads on a engine that are by all means too big of runner then band aid it with various intakes, including maybe some oval ports. Ive already seen how bad a perfomer rpm can kick a Victor jrs ass on anything from about 515 down thruout majority of power band. Smitty
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1.7 is std on bbc. Heads will work ok just not ideal for your application as you’re basically hearing. I doubt you’ll have any clearance issues but what a perfect time to get a good flowing set of aftermarkets tailored to your CI. (290-315 cc) Mentioned in earlier post.
But then it’s cam, intake and exhaust but pending your end goal it may or may not be worth it. JMO
But then it’s cam, intake and exhaust but pending your end goal it may or may not be worth it. JMO
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hogie roll (08-14-2023)
#17
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Nice looking! Based on what you said I’d find another fresh set of 990’s and leave all else alone unless you’re willing to do the whole combo - heads, intake, cam and exhaust. You’ll thank me later 😉
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#20
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Looks like int and exh rocker got switched at some point also but relevant and no biggy as your covers evidently clear.
BTW - you sure you don’t have a collapsed lifter or bad cam lobe? Did you identify the cracks in heads? I’m assuming you didn’t but just asking. If it’s from freezing the blocks almost guaranteed to be cracked before the heads. A little more history might open the door to other things to check and confirm.
Did you recently notice a drop in rpm or always been the same last 60 hours? I see a 200-300 more rpm at least.
Most generally (for me anyway) those cracks on the underside are difficult to see without magnafluxing.
BTW - you sure you don’t have a collapsed lifter or bad cam lobe? Did you identify the cracks in heads? I’m assuming you didn’t but just asking. If it’s from freezing the blocks almost guaranteed to be cracked before the heads. A little more history might open the door to other things to check and confirm.
Did you recently notice a drop in rpm or always been the same last 60 hours? I see a 200-300 more rpm at least.
Most generally (for me anyway) those cracks on the underside are difficult to see without magnafluxing.