Has anyone ever used L29 vortec heads on a carbureted 502
05-24-2019 | 08:39 AM
#1
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Has anyone ever used L29 vortec heads on a carbureted 502
Rebuilding an old stingray 222 have a 502 mag bottom end and a set of vortec 249 heads has anyone ever tried this combo. Was thinking about this with RPM airgap intake and a Holley 800-850 with custom ground cam. My thoughts are that this is a light boat so it would give me a good low rpm cruise but since the boat is light
it would still give me a good top end up to about 5200 rpm. Just don't want to waste my time.
it would still give me a good top end up to about 5200 rpm. Just don't want to waste my time.
Last edited by KHarris83; 05-24-2019 at 08:44 AM.
05-24-2019 | 10:22 AM
#2
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From: On A Dirt Floor
Overall performance listed from low to high hp marine 502 w/supporting components:
Peanut port
Large Oval Port Small Valves
Large Oval Port Big valves
Large Oval Port Big valves w/mild port work
Low cost aftermarket heads 280-320
Large Cost Aftermarket heads 280-315
Peanut port
Large Oval Port Small Valves
Large Oval Port Big valves
Large Oval Port Big valves w/mild port work
Low cost aftermarket heads 280-320
Large Cost Aftermarket heads 280-315
05-24-2019 | 12:06 PM
#3
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From: frankenmuth michigan
ONE WORD: VORTEC PRO , makes like 875 hp from l-29s on 496 bbc at 10,000 feet elevation after magic porting! Peanut BUTTER ports!
06-16-2019 | 12:37 PM
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From: St. Pete Beach, FL
Rebuilding an old stingray 222 have a 502 mag bottom end and a set of vortec 249 heads has anyone ever tried this combo. Was thinking about this with RPM airgap intake and a Holley 800-850 with custom ground cam. My thoughts are that this is a light boat so it would give me a good low rpm cruise but since the boat is light
it would still give me a good top end up to about 5200 rpm. Just don't want to waste my time.
it would still give me a good top end up to about 5200 rpm. Just don't want to waste my time.
Use a crane 731 equivalent or less as I’m assuming you’ll have some sort or stockish exhaust.
06-16-2019 | 01:21 PM
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