Wondering what lifters GM used for this engine.
TIA
ZZ632 Roller Lifters
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Re: ZZ632 Roller Lifters
I'd be willing to be Johnson lifters.
Mark Goulette
Owner/Driver of the Livin' The Dream rear engine dragster
Speed kills but it's better than going slow!
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Owner/Driver of the Livin' The Dream rear engine dragster
Speed kills but it's better than going slow!
http://www.livinthedreamracing.com
Authorized Amsoil Retailer
Re: ZZ632 Roller Lifters
I am curious what is the part number. Well over .700 lift and 6600 rpm with heavy valves etc.
Re: ZZ632 Roller Lifters
It's got titanium valves and beehive valve spring .780 lift.....well designed crate engine.
Re: ZZ632 Roller Lifters
Do ya know what type of retention system for ZZ632 roller lifters? --- OE production-type BBC/sbc dogbones & spider? --- Or linkbars? --- Or keyways? etc etc ?
Re: ZZ632 Roller Lifters
Linkbars i would think, have emailed a few that sell the crate engines asking for more details, but no reply............It sucks when you get no reply back from companies. I've sent about 20 emails, and the only one that responded was PSI valve springs, and answered my question within 2 days.
Re: ZZ632 Roller Lifters
I agree with your sentiments.bob460 wrote: ↑Sun Dec 04, 2022 6:47 pmLinkbars i would think, have emailed a few that sell the crate engines asking for more details, but no reply............It sucks when you get no reply back from companies. I've sent about 20 emails, and the only one that responded was PSI valve springs, and answered my question within 2 days.
I found an article on ZZ632 with pics --- seems lifter retention is via what appears to be typical OE BBC dogbones.
https://www.chevyhardcore.com/tech-stor ... C600%20rpm.
lifter part number --- seems it's in the linked ZZ632 crate deluxe specs --- it's in there --- reads 19432401---whatever that is
https://www.chevrolet.com/content/dam/c ... rZZ632.pdf