Opinions on this combo plan
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 816
Likes: 1
From: Finland
Opinions on this combo plan
Requirements:
6500 red line
600+ HP and very strong on low and midrange torque
Good street manners, 10 years of joy without need to open and inspect every now and then
Strong on strip
Easy later to upgrade to 700+ HP and 7000rpm
Plan:
BG 850 Mighty Demon
Edelbrock BB Victor Jr
AFR 315 Fully CNC ported
Valves with Undercut stems
HydRollerCam ~0.63lift and ~250 @ 0.050
11:1 CompRatio
Forged light aluminum pistons
Total Seal rings
Manley 4340 H-beam rods
Crankshaft Scat (of similar) 4340 steel 4.250 Stroke
540 Dart Big M or World III Race
Have already:
1973 Vette
2” primaries headers
All MSD (6AL, Pro billet, 8.5mm wires, Blaster2)
TH400
3.36 rear gear
What kind of habits would you guess out of this combo?
Something there popping into your mind not fitting into picture?
Where on rpm the peak HP, peak TQ and how much?
6500 red line
600+ HP and very strong on low and midrange torque
Good street manners, 10 years of joy without need to open and inspect every now and then
Strong on strip
Easy later to upgrade to 700+ HP and 7000rpm
Plan:
BG 850 Mighty Demon
Edelbrock BB Victor Jr
AFR 315 Fully CNC ported
Valves with Undercut stems
HydRollerCam ~0.63lift and ~250 @ 0.050
11:1 CompRatio
Forged light aluminum pistons
Total Seal rings
Manley 4340 H-beam rods
Crankshaft Scat (of similar) 4340 steel 4.250 Stroke
540 Dart Big M or World III Race
Have already:
1973 Vette
2” primaries headers
All MSD (6AL, Pro billet, 8.5mm wires, Blaster2)
TH400
3.36 rear gear
What kind of habits would you guess out of this combo?
Something there popping into your mind not fitting into picture?
Where on rpm the peak HP, peak TQ and how much?
Le Mans Master
Joined: Mar 2001
Posts: 6,240
Likes: 1,013
From: Watkinsville, GA and Glen Cove, NY
Vesa, very similar to my combo. Mine is a 502 with the AFR 315's, Victor Junior, SRP 10.2 pistons, Hooker sidemount 2.125 headers, 4 speed with 3.70 gears. I am running a solid flat tappet cam with 258 @ .050 and .615 lift. My combo made 614 hp on an engine dyno and it is very driveable on the street. I did significantly upgrade the rear end for safety though. The horsepower peak for this combo was at 6100 rpm's and torque was 586 ftlbs at 5000 rpm. The dynoing was done with a Holley strip dominator intake and a 950 Holley HP. I now have the ported Victor Junior and an 1000 HP Holley. So I would imagine I am more around 625-630 crank horsepower. At some point I may go the solid roller route and sneak up on 700 hp. Should not be hard to do.
