Cam for 6.0
I have looked at the Chopacabra from Texas Speed, is there anything else in a kit out there that is bigger/better and sounds nasty without getting a custom grind?
Thanks in advance.
I have looked at the Chopacabra from Texas Speed, is there anything else in a kit out there that is bigger/better and sounds nasty without getting a custom grind?
Thanks in advance.
Andrew
Summit's Big Nasty 5/4 race cams are made in the USA and that should tell you something right there. You want overlap and chop? You've come to the right place. They have the overlap of big race cams YET work with a stock converter and flat top pistons! They makes so much torque, gears are no longer required - but 4.11's are always the fastest. Headers and free flowing exhaust recommended but Zoomies really let folks know you're not playin' around. If you can tune for one of our Stage four race cams, you've got the right stuff to tune these. Gas Mileage not included.
Notes:
Stock pushrods ok. No Flycutting required. Zoomies Highly recommended. Stock converter ok but 5000 stall and 4.11's always better. SUM-174002 LS6 valve spring required. Gas mileage not included. Tuning required.
https://www.summitracing.com/parts/s...GBJZGgcW1KLK94
We agree with @68Formula and want to share some additional details to help you choose the SUM-8733R1 "Big Nasty" 5/4 Race Cam! The specs are impressive: .550/.550 lift, 218/230 duration, 105+3 LSA, with 14° of overlap.
Check out these videos for some inspiration:
- First Start Video: This clip from slammin86 features an '87 Chevy R10 with a 6.0L engine running the Big Nasty cam. It's the first start on an old tune, idling around 750 RPM. If you're looking for that aggressive chop, this cam delivers!
- Tuned Idle: The same setup after some tuning shows how much smoother the idle can be with a bit of work.
- Dyno Test: Richard Holdener ran a dyno test comparing the SUM-8733R1 to our Pro LS Stage 4 SUM-8711R1 in an L33 5.3L with Trickflow heads ported by BTR. While both cams share 14° of overlap, their specs are quite different. After installing the Big Nasty cam, peak numbers came in at 459 hp at 6,500 RPM and 438.8 lb.-ft. of torque at 4,800 RPM. Interestingly, while peak horsepower was lower with the Big Nasty (488.5 to 459 hp), peak torque increased (438.8 vs 432.5 lb.-ft.). The biggest gains were seen below 3,000 RPM, where the Big Nasty delivered an additional 50 lb.-ft. of torque! The comparison starts at 11:50.

Let us know if you have any more questions!
That sounds great! We sent you a private message about a kit we could put together for this.










