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05-08-2013, 01:12 AM
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#1 |
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Registered User
Join Date: Jun 2011
Location: sacramento, ca
Posts: 108
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Re: 454 bbc thrown out!!!
Update folks.. Block is good, 60 over, roller motor. Heads good too.. Getting the crank polished and micd, rods checked for size.. Just dont know bout cam selection.. Is roller better any better than flat tappet? What are the pros/cons? Thanks
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05-08-2013, 07:39 AM
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#2 |
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Registered User
 
Join Date: Mar 2005
Location: apple valley, ca
Posts: 2,670
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Re: 454 bbc thrown out!!!
Roller is definitely a better way to go, especially with the quality of today's oils. For the past decade, the oil manufacturers have slowly started removing zinc from the oil. On a flat tappet cam, zinc is really critical because it helps cushion the extreme force between the lifter and the cam lobe. You can flatten a brand new cam lobe in minutes during initial break-in if you use a modern oil without zinc or a break-in additive.
The biggest issue with rollers is the price. The cams usually a steel billet, and they cost more. The lifters are more expensive as well. Actually, the factory (Delphi) stock roller lifter is a pretty good piece. It's heavier than an aftermarket lifter, but they're reliable, easy to find, and pretty cheap. I'm not sure how stout you want to make your engine, but you might be able to find a factory take-out roller cam with no miles for super-cheap. I used to get the catalogs for Performance Products, and they used to have an area called the "Broom Sheet" where they had lots of take-out factory roller cams for less than $50.
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05-08-2013, 07:41 AM
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#3 |
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Registered User
Join Date: Sep 2009
Location: Marietta, Ga
Posts: 115
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Re: 454 bbc thrown out!!!
Only downside to a roller is added cost. Do some looking around and you might be able to find a good used cam/ lifter set.
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05-08-2013, 10:36 AM
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#4 | |
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Registered User
Join Date: Nov 2011
Location: Omaha, Nebraska
Posts: 437
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Re: 454 bbc thrown out!!!
Quote:
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05-08-2013, 11:18 AM
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#5 | |
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Senior Member
Join Date: Apr 2009
Location: SAN FERNANDO VALLE SOL CAL
Posts: 1,064
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Re: 454 bbc thrown out!!!
Quote:
Pros Of A Roller No Need To Break in A Cam... Posted via Mobile Device
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