GM GEN III-XR275HR-12
LS1/LS2/LS6 HYD. ROLLER-Great street/strip
camshaft for mid-range and high rpm
power. Must have programmer.#54-426-11
Thumpr™
HYDRAULIC ROLLER –High performance street,
stock converter ok, best with 2000+ converter
and gears, choppy idle
   
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GM GEN III-XER273HR-14(idle)
LS1/LS2/LS6 HYD. ROLLER-High rpm street/strip.
XE-R lobe designs. These are the most aggressive
lobes for all out applications.#54-444-11

  Mutha Thumpr™
HYDRAULIC ROLLER –High performance street/
strip, needs 9:1 CR, 2500+ stall, intake,
gears, and headers, rough idle
   
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GM GEN III-XER273HR-14(dyno pull)
LS1/LS2/LS6 HYD. ROLLER-High rpm street/strip.
XE-R lobe designs. These are the most aggressive
lobes for all out applications.#54-444-11


  Magnum 280H
HYDRAULIC-Great for street machines.
2500+stall, headers & gears. Rough idle.
   
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GM GEN III-XER287HR-12
LS1/LS2/LS6 HYD. ROLLER-Xtreme Energy XE-R
design for large cubic inch LS6 and LS1.
Race Only Applications.#54-448-11

  Magnum 292H
HYDRAULIC-Street/strip special
3000 stall, headers, gears,
9.5:1 CR. Very rough idle.
   
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GM GENIII XR-269HR-14(LS1)
LS1/LS2/LS6 HYD. ROLLER-Great mid-range
with superior top end power. Needs
programmer.#54-414-11


  Xtreme Marine™ -XM278H
HYDRAULIC-Jet boat with A or B
impeller, good off shore high
performance cam, rough idle.
   
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