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    Intake port cc question for 5.7l sbc

    Thanks all. I don't want to run more than 5000 rpm . I am looking for max torque. My deck clearance is .017 ,with 64cc heads I was just concerned about being at 9.8:1 on the less than stellar marine gas. For the cost up here in the great North , especially with Covid pricing and availability ...
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    Intake port cc question for 5.7l sbc

    Ok going forward......165-170cc intake runner is said to be fine for a stock 355cid with my marine cam according to Dart. This will breath much better than the stock heads. Carlos
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    Intake port cc question for 5.7l sbc

    I was all set.....Ordered a set of Jegs vortec heads and intake. Then the might as well hit. I cancelled the order. I am now wanting to get a set of Dart Iron Eagle heads. They offer a 165cc intake port and 72cc combustion chamber. This would put me at 9.68:1. This is where I get confused , or...
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    5.7l carburetor choices

    Thanks Lou, Ya only the rebuilt 9909 is available right now . Which is the 1409. And for a fraction of the cost I can rebuild my QJet. I will check out Cliffs . Carlos
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    5.7l carburetor choices

    Well....I researched the Rochester carbs. They are quite impressive that they come 750cfm and 800cfm , Just the tuning is different for different applications. Long story short....I flip flopped the idea back and forth between the 1409 and rebuilding my Quadrajet. I ended up ordering a custom...
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    5.7l carburetor choices

    Thanks all. I will go with the 1409. Thanks Scott , I kept the throttle bracket from my old carb. No the slave and breaker are on the water separator bracket. Carlos
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    5.7l carburetor choices

    There is a Quick Fuel Technology M650 Carburetor that I can get here in Canada . Looks like a Holly ?
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    5.7l carburetor choices

    Ok , I ordered JEG vortec heads 514080 and aluminum intake 513002 for my 355 build. Block is a 92 5.7l marine cam 14097395 . The cfm flow for my motor is 436cfm according to the calculator. That seems a little low. I have seen the 1409 by Edelbrock recommended . What Holly would be good ? My...
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    Compression ratio 5.7l

    I gathered that. I just did not think about the rpm and torque curves. But I will stick with stock replacements. Thanks, Carlos
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    Compression ratio 5.7l

    Ahh ok , I did not realize there was a difference in heads between the marine and hot rod . I think i will just go with the 906 / 602 castings from rock auto then. The 151124 head from Summit is what I was considering. Rock Auto has the Engine Quest heads re bagged as Engine Tech.
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    Compression ratio 5.7l

    Thanks, I found a Summit Vortec head at 67cc.
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    Compression ratio 5.7l

    I was referring to the stem size.
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    Compression ratio 5.7l

    Makes sense , The heads were 1995 tbi ....217 casting. Question...I was offered a set of late model truck heads with 3/8 exhaust valves. Not sure of the casting numbers yet. The valves are 1.94 and 1.50. Would staying with the mid sized valves produce more mid range power? Since a boat only...
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    Compression ratio 5.7l

    The serial number is F786416. It was in a 1996 Baja originally . This is the fire slotted block. Carlos
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    Compression ratio 5.7l

    Thanks all, Carlos
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    Compression ratio 5.7l

    My block was decked I have flat top 4 valve relief .030 over size pistons. compression height 1.548 with +6.90 cc piston head volume. The engine is stock build OEM otherwise. I would be using 91 octane from the marina. I have been playing with Summits compression calculator. Hence the question...
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    Compression ratio 5.7l

    What would be the safest compression ratio for a 355cid with factory roller cam. 1995 . 0F786416 Block is 0 decked . No i did not do a stroker 383 . Too much cost and work to the block. Next boat I will do it though ;) Thanks, Carlos
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    Eagle , Scat rod question

    Ok thanks, Now to instill proper boat educate to my sons.
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    Eagle , Scat rod question

    No my TB-IV is from my 305. I did not get the ignition with the fire slot gift motor. Does the TB-IV have a rev limiter?
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    Eagle , Scat rod question

    Thanks, I will be calling my machine shop tomorrow. Need to see what they will charge for balancing . This has possibilities , I am after the mid range torque. I have a non vortec intake already. A rev limiter would be good also....teen age kids == wave jumping.
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