Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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Can i call comp cams ...I got the chance to buy a roller cam and roller rockers for a great price...the guy only knows its close to a .470 lift...he sent me some #s off the camshaft....4714yn,1197,????,3311,3312ehr12?4...what the @.%.#.& I dont have a clue what that means..anyone?will these numbers do anygood to call cc with. thanks
Re: guess the cam with camshaft numbers...good luck
3311 & 3312 are the lobe numbers, from their lobe catalog; hr12 is a hyd roller with 112° LSA. That info right there will tell you exactly what it is.
It sounds like one of the smaller HRxxxHR cams, like about a 270. But their lobe library isn't in their catalog any more, so I can't help you get any closer than that.
__________________ Numquam ponenda est pluralitas sine necessitate. — William of Ockham, from Quaestiones et decisiones in quattuor libros Sententiarum Petri Lombardi
Roughly paraphrased into modern English, and applied to figuring out what's wrong with your car:
The simplest explanation that fits all the facts is probably the right one.
Re: guess the cam with camshaft numbers...good luck
If you know where to find it, let us know. Used to be the Table Of Contents in their on-line catalog; "Lobe Master List" or something like that. Not there any more.
__________________ Numquam ponenda est pluralitas sine necessitate. — William of Ockham, from Quaestiones et decisiones in quattuor libros Sententiarum Petri Lombardi
Roughly paraphrased into modern English, and applied to figuring out what's wrong with your car:
The simplest explanation that fits all the facts is probably the right one.
Re: guess the cam with camshaft numbers...good luck
Btw I have that peanut grind cam in a 383 . It is the retro roller version 12-408-8. Installed in a stock 86 z51 vette, tpi stock maf bua untuned. no cats 2-1-2 exhaust, 24# injectors, the (crappy) 170 edelbrock performer Al heads roller rockers.
This set up will lite the tires with just throttle (no power brake) 10ft in 1st, 6 in of sideways barking 2nd, and a loose rear end at 75 mph when it hits 3rd shifting off the gov. runs 125 mph @ 5000 rpm in 3rd. gets 15 city and 20 highway. makes for a nice no lope street machine.
ordered a prominator to start the tune. Its just a grandpa car.
