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-   -   Bbc 454 gen 4 overhaul (https://www.offshoreonly.com/forums/do-yourself-boating-budget/368920-bbc-454-gen-4-overhaul.html)

Baja 250es 11-08-2020 05:05 PM

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Or I should say id like to put another 700hrs on it myself

Baja 250es 11-08-2020 05:06 PM

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Mcollinstn its a 1050 holley carb but ignition is all stock

Baja 250es 11-08-2020 05:38 PM

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So is there not a good cam out there that I can install with out doing any machine work or is there no way around this

Smitty275 11-08-2020 07:10 PM

You can use the Gen VI cam in your Mk IV. Just need to get the retainer plate thru GM. The block "should" already be machined for it. I'd be surprised if it isn't already. Use the Gen VI chain set.

Baja 250es 11-08-2020 07:21 PM

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https://cimg4.ibsrv.net/gimg/www.off...9e11acbdf3.jpg

Baja 250es 11-08-2020 07:22 PM

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https://cimg6.ibsrv.net/gimg/www.off...1d38525c88.jpg

Baja 250es 11-08-2020 07:23 PM

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https://cimg6.ibsrv.net/gimg/www.off...746c7ed4f2.jpg

Smitty275 11-08-2020 07:36 PM

http://www.summitracing.com/parts/na...1053/overview/

That's the link to the GM chain set and includes the retainer plate. Some have said they needed to elongate one of the bolt holes in the plate to use it on the MK4. Some will complain it's a single roller but it's plenty strong and durable.

Baja 250es 11-08-2020 07:46 PM

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So there isn't a direct replacement performance cam for this engine

Baja 250es 11-08-2020 07:49 PM

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So there isn't a direct replacement performance cam for this engine
or is this my easiest option for a mark 4


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