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Old 04-01-2016, 12:38 AM   #17
storm9c1
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Join Date: Oct 2008
Location: Pittsburgh, PA
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Re: L29 454 Build for '63 K15 with NV4500

Hard to tell with just a few random pictures and partial angles. So I'm not even going to make a judgment there. At first glance though, I see nothing majorly wrong or anything. I'd need to see (and feel) that stuff in person and check things with proper tools (looks can be deceiving). I'm sure the machine shop will give it a good go etc. Your logic sounds reasonable with your options and workflow. And I agree, be sure to consider cam carefully into your equation, especially with your target CR. Stock L29 heads should be 119cc. If you go with your 148s (3933148) they are 122cc or 112cc (conflicting info about them online and my books don't have the volume). My book says '69 396 passenger car oval port 2bc. And then 68-84 366,427 tall deck HD truck, oval port.

FWIW, you can also buy new GM performance heads that are 99cc IIRC.

Sounds like it will be a nice streetable setup with the NV4500 if you are still going with that. Keep us posted.
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Chevy by day...
1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E
2011 Chevy Caprice PPV 9C3 6.0L (6K miles)
1995 Chevy Caprice 9C1 (177K miles)
1994 Chevy Caprice 9C1 #3 (99K miles)
1995 Chevy Caprice Wagon #2 (60K miles)
1995 Chevy Impala SS (20K miles)
Mopar by night...
1969 Dodge Charger
1972 Chrysler Newport 2dr Hardtop (27K miles)

Plus others...

Last edited by storm9c1; 04-01-2016 at 01:02 AM.
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