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468 build

Old 05-19-2020, 07:54 PM
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Default 468 build

Hey guys building up a 468 and wanted to know if anybody has used this cam...https://www.cpperformance.com/p-1162...ifter-kit.aspx. And if used how do you like it? Pros and cons...
Also I can’t find a recommended compression ratio for this set either.. I’ll probably be around 9.5-1... 6k rpm max, very light boat, cmi headers with threw transom tips... any recommendations
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Old 05-19-2020, 09:56 PM
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I think it would be a nice mild build. I used to run 9.7:1 for years and I believe that cam will run out of power well before 6000 RPM.
I just built 2 Merc 420's (454's) with upgraded 500 EFI cams 230/236, 0.598"/0.610"
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Old 05-19-2020, 10:16 PM
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Rookie are you running dry exhaust? What’s that max lift you can get away with staying with reasonable compression?
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Old 05-20-2020, 07:37 AM
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Originally Posted by picca00 View Post
Rookie are you running dry exhaust? What’s that max lift you can get away with staying with reasonable compression?
Lift doesn’t have a relationship to compression. Duration does. In general, for a given fuel octane, more duration will allow more compression.
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Old 05-20-2020, 10:35 AM
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I used the 500efi cam in my 420's and they work great.
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Old 05-20-2020, 11:04 AM
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Originally Posted by Rookie View Post
I think it would be a nice mild build. I used to run 9.7:1 for years and I believe that cam will run out of power well before 6000 RPM.
I just built 2 Merc 420's (454's) with upgraded 500 EFI cams 230/236, 0.598"/0.610"
X'2 Agreed, I just did the same with a 454 Mag. Same Crane 168731 112* with 9.5:1.
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Old 05-20-2020, 11:10 AM
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Originally Posted by KRAUSMOTORSPORTS View Post
X'2 Agreed, I just did the same with a 454 Mag. Same Crane 168731 112* with 9.5:1.
what heads did you use and what’s the approx hp?
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Old 05-20-2020, 11:10 AM
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Red Zone? Maximum Endurance Roller Lifter [3372RH] - $1,065.00 : ISKY Racing Cams, Do It Right

no needle bearings!!!!
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Old 05-20-2020, 11:11 AM
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Originally Posted by KRAUSMOTORSPORTS View Post
X'2 Agreed, I just did the same with a 454 Mag. Same Crane 168731 112* with 9.5:1.
The 731 is a tad smaller than the 500EFI cam. (226 vs 230 int duration at .050”)
Still a good choice for many 454/502 builds.
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Old 05-20-2020, 01:16 PM
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hows the 525efi cam with a carb?

Originally Posted by SB View Post
The 731 is a tad smaller than the 500EFI cam. (226 vs 230 int duration at .050”)
Still a good choice for many 454/502 builds.
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