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73-87 Chevy _ GMC Trucks => Performance => Topic started by: yzrider on May 09, 2013, 02:21:01 am
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I've got a '79 c30 with a 454/sm465 combo in a crew cab dually. Its got roughly 150k on it or so and runs absolutely amazing. I want to rebuild it/freshen it up though as it is burning some oil on start up. I figure new rings, get the heads redone, new bearings, and new gaskets at a minimum. Plus fresh ignition parts as well.
I love the power delivery of the motor, I love how it pulls from idle cleanly but more power is always welcome. Since rebuilding it anyway I know there's some easy power to be found. What would you guys suggest? Im not against even a new set of heads or anything I just dont want to put together a mis matched set of parts and lose the clean delivery it has now.
I was thinking since the compression is so low stock maybe just a piston swap, and headers would see a nice increase in power for a cheap investment. I would do some port work/matching on the heads and intake too since that costs nothing.
Anyway im just typing away I know alot of you guys are way more knowledgeable than I am so any input is much appreciated!
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Look for a set of 049, or 781 casting heads. A slight bump in compression would help. Speed Pro H426P pistons complement the 353049 heads very well.
Drop in an RV cam, and maybe a QUALITY brand of headers and you'll think you have 2 454s under the hood. (The '79 454 really wasn't impressive stock) Stay with the stock carb, and intake, or get a factory high rise dual plane Q-jet set up and you'll be happy X2
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I have a 75 454 turbo 400 I put an rv cam roller rockers a performer manifold and a holley 800 it does rolling burnouts an no headers