These are a set of good performance cams for Buick big block engines. I am choosing one for my '67 GS400 which is about to receive a 455. The car is equipped with a M21 4 speed transmission coupled to a BOP 10 bolt with 3.36 gears. It also has A/C, and when I stop at a light and the A/C cuts in, I don't want it to stall!
I am not concerned about getting a lumpy sounding car, which seems the first concern of many camming up their motors. I want a car that runs nice with whatever top end I can get. I definitely don't even want to go over about 5500. I have had pretty good luck sticking a set of Rhoads lifters on relatively mild street cams and will almost certainly do it this time. I suspect that the Rhoads would like a cam ground on a tighter rather than wider lobe separation.
The 455 is a very popular performance build, so I thought there might be some interest in the information by those builders.
Please comment on your experiences
MAKE | GRIND | RPM RANGE | DURATION .050" | LOBE SEPERATION |
GROSS LIFT |
Crane Cams | H218/280-25-12 | 1800-5400 | 218/226 | 112 | .448/.464 | Howards | CL550101-12 | 1000-5000 | 205/215 | 112 | .448/.474 |
Howards | CL550121-12 | 1200-5200 | 215/222 | 112 | .474/.496 |
Isky | 115126 | 2000-5500 | 208/208 | 108 | .445/.445 |
Crower | 52238 | 1500-4000 | 210/214 | 112 | .464/.488 |
Crower | 52239 | 1500-4000 | 212/216 | 112 | .475/.487 |
Crower | 52240 | 1800-4500 | 222/228 | 112 | .488/.499 |
T/A Performance | 112-455 | 1100-5500 | 210/215 | 112 | .455/.468 |
T/A Performance | 212-455 | 1500-5500 | 218/230 | 112 | .459/.470 |
Comp Cams | 96-200-4 | 800-4600 | 206/206 | 110 | .439/.439 |
Comp Cams | 96-202-4 | 1000-5000 | 212/212 | 110 | .454/.454 |
Comp Cams | 96-203-4 | 1200-5200 | 218/218 | 110 | .469/.469 |
Lunati | 290/296 | 2000-5000 | 224/234 | 112 | .480/.503 |
Lunati | 256/262 | 1000-5200 | 213/219 | 112 | .470/.484 |
Lunati | 262/268 | 1300-5500 | 219-227 | 112 | .484/.505 |