Tech / General Engine Is 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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rocker combo

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Old Feb 22, 2010 | 02:41 PM
  #1  
chaoz28's Avatar
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Joined: May 2007
Posts: 258
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From: Pueblo CO,
Car: 87 formula/69 beetle
Engine: 355/2.1
Transmission: T.C.I streetfighter th350/5 speed
Axle/Gears: 3.73 lsd/
rocker combo

Been tooling around lately with a new build in my firebird witch sat engineless for about a year now (rolled crank bearings) its almost the indentical build as my signiture (old build) execpt the bottom end is a stock pistoned 4 bolt 350. and now im running a speed demon 750. ive been tooling around with the idea of running 1.6 rockers on the exhaust and 1.5 on the intake. ive seen a few ppl run this combo and gain just a tad bit over solid 1.6 or 1.5 rollers. any input on this idea?
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Old Feb 22, 2010 | 08:07 PM
  #2  
five7kid's Avatar
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Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Only with a single pattern cam. The XE268 is dual pattern.
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