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06-27-2017, 12:32 AM | #1 |
Registered User
Join Date: Jun 2017
Location: San Antonio, Texas
Posts: 156
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74 C-10 with 454. Which Heads?
The more I read the more I get confused.
I recently bought a 74 Cheyenne C10 with a factory stock 454. My questions: 1. What heads did it come with? 2. I thought it had peanut ports but then read elsewhere that PP heads didn't come out until 75. 3. If it has PP heads what would be involved in bolting on a better set like 049 or 781's ? Would it require a pushrod and or cam change? I'm fairly comfortable with my knowledge of the SBC and thought I knew something about the big blocks, but it turns out I don't know nearly as much as I thought. 4. Is there anything I can bolt on that would make it breathe better? I don't need drag strip breath, but stronger daily driver breath would be a good start. Thanks! |
06-27-2017, 06:20 AM | #2 |
Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,453
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Re: 74 C-10 with 454. Which Heads?
I've had a couple early mid 70s 454s and had 049s or 781s. Pull valve covers and see...
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2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS |
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