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Old 10-01-2006, 09:39 PM   #1
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Default Hmm rockers or a pulley?

I can't decide on whether to get a pulley system or Harland Sharp Full Roller Rocker Arms. The power they will add will be around the same,(around 15-20 hp). If I get the pulley I'll need to get the pulley system $99, the puller $99, and an aeroforce scan gauge $239. Or the rockers: Drop 399 and not worry about KR. Not too sure which one, I'll ultimately end up getting both but its I'm only getting one at a time.

thanks in advance for any opinions
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Old 10-01-2006, 09:44 PM   #2
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pulley route... you dont NEED to buy a puller, lots of ppl have them to rent...
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Old 10-01-2006, 11:13 PM   #3
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yeah but nobody in the club lives anywhere near here. Oh and would the rockers reduce the chance of me getting knock retard?
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Old 10-01-2006, 11:14 PM   #4
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shipping is a wonderful thing
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Old 10-01-2006, 11:17 PM   #5
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Honestly, I would say get the rockers. Then if you still want to get a pulley you have a very good mod already done that is very adequete when dropping pulley sizes.

Either one, you can't lose (as long as you don't go smaller than a 3.4 or 3.5 without rockers).
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Old 10-01-2006, 11:31 PM   #6
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remember mods build on mods...


Pulley THEN rockers
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Old 10-01-2006, 11:36 PM   #7
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Also, I'd suggest a reprogrammed PCM to get the most out of the rockers and/or pulley.
Yes, that'* the mod bug talking.
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Old 10-01-2006, 11:53 PM   #8
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Quote:
Originally Posted by OLBlueEyesBonne
Also, I'd suggest a reprogrammed PCM to get the most out of the rockers and/or pulley.
Yes, that'* the mod bug talking.
ahh that is right Marty, dont for get the 100 + core for hte PCM when looking at rockers to take full advantage of them

if your going to do this i have a Spare PCM for sale (shamless plug) so you dont have to send in yours for the reburn
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Old 10-02-2006, 08:38 AM   #9
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Hold on guys...

Changing a pulley doesn't require a new pcm. Heck..all the mods I've done to date haven't seen dramatic differences from a new pcm... (cept now I can smoke the tires ) The butt dyno doesn't necessarily feel a difference from a pcm...the pcm makes all those mods work better.

Another alternative to renting and shipping a puller is hopping on your local GP/GM Truck forums. Many that have GTP'* and the SC kits for trucks have the pullers.
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Old 10-02-2006, 01:48 PM   #10
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Absolutely get the pulley first. Not only will you get 30 HP but also 50 lb ft of torque (something the rockers won't really give you). To run a 3.4 you want a 180 T-stat, cooler plugs, and a better intake (prefer FWI) along with a 715 size belt. Once that is done, I would do a PCM then possibly rockers unless your thinking of doing a cam in the future (in which case I would skip the rockers and get the cam).

My .02
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