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Update on E85 powered 455 Buick with Ported Edelbrock heads

Monday, May 24th, 2010

We managed to get Brian’s 72 Buick GS to Norwalk for the Annual Buick Raceday and get some passes on it. On the dyno, it made 703 HP, full results here. We had a great first outing running three passes in the 10.60′s right out of the box. The engine has been dyno’d, but we hadn’t made any passes in the car, so we weren’t quite sure what to expect. We had some charging issues which plays hell with the MSD ignition boxes, and a big hesitation on launch, so overall we were very pleased with our first outing. I’m sure with some attention to detail, and getting issues straightened out, the car will run even better.

Overall, the Norwalk Buick Raceday is a great event, and it was nice to be able to put faces with all of the names of the Buick guys I have spoken to over the years. Roberta, Bill and crew do a great job putting this event on. If you have an opportunity, you should check it out. More info here: Buick Raceday: Facebook Page

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Dyno Test: 464 CID Buick with Edelbrock heads on E85

Sunday, October 18th, 2009

The purpose behind this engine was to build a max effort street strip Buick 455 combo, using the new Edelbrock heads. The heads are fully ported and will be available from Competition Components. The car is regularly street driven, weighs 3900+ lbs and is cruised regularly, so race fuel was not an option.

Buildup:

  • Stock 455 Buick Block (+.038)
  • Finishline Halo Girdle
  • Stock 455 Buick Crank
  • 4340 Pontiac I Beam rods (modified to fit Buick journal)
  • Custom CP Pistons
  • ARP Main Studs
  • ARP Head Studs
  • Edelbrock 455 Performer Heads (Fully Ported)
  • Comp Pro Magnum Roller Rockers (1.6)
  • Custom Mechanical Cam (260 @ .050, .600 net lift)
  • Beehive Springs
  • Titanium Retainers
  • Cometic Head Gaskets
  • SCE gaskets for the rest
  • All Block Work by Finishline Motorsports   (Thanks Bobb and Geof!)
  • Romac Balancer
  • JW Flexplate
  • Proform 455 Buick Timing Cover
  • 4500 Carb (Modified for E85 use)
  • E85 purchased at local Meijer gas station for $2.22/gallon
 
Results:  703 HP at 6000 RPM – 653 @ 5200 RPM. 600+ lb/ft of torque from 4200-6000 RPM.
 
These heads are available through a group purchase in feb 2011. Details
  

 

We hope to have some track results soon!
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Dyno Test – Mike’s Pump Gas 496 HEMI

Tuesday, May 5th, 2009

Basic Parts List:

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