Lest you think the Summit Racing folks have been overly focused on Coyotes, the LS family, and Gen. 3 Hemi engines lately, they recently introduced a lineup of Pro SBC Camshafts for the trusty Small Block Chevy V8.
These made-in-America hydraulic roller cams come in four stages, and you can get a closer look at the Summit Racing camshaft manufacturing process in this article: How a Camshaft is Made
As for the Summit Racing Pro SBC Cams themselves, scroll through this comparison table and click the part numbers to learn more about each one.
Summit Racing Pro SBC Camshaft Specs
| Part Number | Description | Dur. @ 0.050″ (Int./Exh.) | Adv. Duration (Int./Exh.) | LSA | Lift (Int./Exh.) | RPM Range |
|---|---|---|---|---|---|---|
| SUM-8800 | Stage 1 | 204° / 214° | 257° / 267° | 112° | 0.450″ / 0.450″ | 1,500 – 6,000 |
| SUM-8801 | Stage 2 | 212° / 218° | 261° / 267° | 112° | 0.521″ / 0.520″ | 1,500 – 6,000 |
| SUM-8802 | Stage 3 | 218° / 227° | 267° / 275° | 112° | 0.525″ / 0.520″ | 1,800 – 6,300 |
| SUM-8803 | Stage 4 | 224° / 232° | 276° / 281° | 112° | 0.550″ / 0.540″ | 2,000 – 6,500 |
Pro SBC Cams & Real World Performance
As much as we love to nerd-out on valve events and cam figures though, the proof is in the proverbial performance pudding, right?
Enter our pals over at Wide Open Throttle.
The Wide Open Throttle YouTube channel is packed with excellent, real-word performance engine building tech, tests, and tips. And those folks document everything on film…err….pixels. From dyno pulls to track runs, you can see it all: good, bad, and everything else. Better still, they’re not afraid to show you cam cards, dyno charts, and time slips.
Suffice it to say, we appreciate their honesty.
With a little help from an upgraded LT1 in a fourth-gen. Firebird, we get to see how dramatic a difference the Stage 2 SUM-8801 cam can make in all-out performance and overall drivability.
Considering the video is almost 15 minutes long, it doesn’t skimp on the details. Get a good look at the Summit Racing Pro SBC cam magic for yourself:
Comments