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Old 05-23-2008, 03:22 AM   #3
Jeff Lee
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Join Date: Jul 2007
Location: Anthem, Arizona
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Default Sportsman reps, take note

"Killer" yet legal valve-train for Stock:

1) Steel billet camshaft
Options: large cam journals (babbit or roller bearings) , change in firing order.
Cost: upwards of $1500 parts / labor (includes boring cam tunnel).

2) non-OEM lifters
Choices: Schubeck carbon composite heel or body, OEM style altered plunger conversions (available through various sources), tool-steel lifter bodies.
Options: various coatings to reduce wear.
Cost: upwards of $850.00

3) "Any size" pushrods
Choices: Manton as primary source, single or dual taper 7/16" to 3/8", .120" to .168" wall construction. Larger sizes available.
Cost: approximately $30 per pushrod or $480.00 per set.

4) rocker arms
Choice: BBC using 9/16" stud mount and 8.1L BBC rocker arms, various other treated / coated assemblies also available.
Cost: approximately $750.00

5) valve springs & retainers
Choice: Beehive or traditional to deliver 400-450#'s open pressure. Available from various suppliers. Retainers: tool steel
Cost: approximately $450.00

6) Guide plates
Choice: OEM to aftermarket.
Cost: ? $150 ?

Any Sportsman reps want to comment on why a roller rocker rule would "ruin" the sport?
Next to guide plates, your $289.00 Crane "Gold" rockers are the cheapest parts here yet the only parts that lead to engine longevity.
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