Ground Pounder Street 470
Great Looking Engine & Dyno Numbers !! Good Job !
I'm really interested in your Lifters here ?
Up to what Valve Spring Rate ? / at what Installed Seat Pressure ?, do you recommend for your Solid Roller Lifters on the Street ?
I need to run some Cam/Spring Slew Rate Sims.
For comparison, we get similar horsepower numbers(575 hp) using an Flat Tappet Solid Cam...on the Ported Edelbrock rpm's....on the smaller stroke(less Torque) 451 pump gas packages we sell, using the CompCams XS282S(244* / 252*) .
It Certainly can't match the Bigger Stroke or Roller Cam for Torque, only 583 ft/lbs, but we just find it a cheaper route to go without the costs of Offset Crank Grind, and the Roller Cam/Hardware/Springs, etc., Costs ?
For a 660hp and 640 Ft/Lb Pump Gas level pkg., we just default to the 493 RB Package(we also offer it on a lowdeck W/2.200" journals), still with a cheaper Solid Flat Tappet Cam & Hardware, but with the INDY EZ Heads on a 6hr "prep for service" including a CNC Chamber plunge cut to 80-82cc's, once again to keep costs down.
This 451 one is 6 years old now.... been to California & back twice now from Alberta Canada, 45,000 Miles still going strong, mid 11's at the track in a B-Body.
The 2nd Dyno Sheet is the 493 Low, or High Deck 91 Octane Pump Gas Package, very popular with the Brackets Guys these days at 664hp and 644 Ft/lbs Torque on a Cheapo low maintenance Flat Tappet Solid Cam.
Great Looking Engine & Dyno Numbers !! Good Job !
I'm really interested in your Lifters here ?
Up to what Valve Spring Rate ? / at what Installed Seat Pressure ?, do you recommend for your Solid Roller Lifters on the Street ?
I need to run some Cam/Spring Slew Rate Sims.
For comparison, we get similar horsepower numbers(575 hp) using an Flat Tappet Solid Cam...on the Ported Edelbrock rpm's....on the smaller stroke(less Torque) 451 pump gas packages we sell, using the CompCams XS282S(244* / 252*) .
It Certainly can't match the Bigger Stroke or Roller Cam for Torque, only 583 ft/lbs, but we just find it a cheaper route to go without the costs of Offset Crank Grind, and the Roller Cam/Hardware/Springs, etc., Costs ?
For a 660hp and 640 Ft/Lb Pump Gas level pkg., we just default to the 493 RB Package(we also offer it on a lowdeck W/2.200" journals), still with a cheaper Solid Flat Tappet Cam & Hardware, but with the INDY EZ Heads on a 6hr "prep for service" including a CNC Chamber plunge cut to 80-82cc's, once again to keep costs down.
This 451 one is 6 years old now.... been to California & back twice now from Alberta Canada, 45,000 Miles still going strong, mid 11's at the track in a B-Body.
The 2nd Dyno Sheet is the 493 Low, or High Deck 91 Octane Pump Gas Package, very popular with the Brackets Guys these days at 664hp and 644 Ft/lbs Torque on a Cheapo low maintenance Flat Tappet Solid Cam.