[se428bandit]

Well finally,the T/A might see daylight after hibernating for 11 LONG years.I have a 455 forged pistons,stock rods, ported 6X heads [90 cc],ferrea valves,performer intake,800cfm Quadrajet,3.23 gear,Turbo 350, 2800 stall,comp 140 electric fuel pump.

OK here's where im stuck,
Hedman shorty headers or Ram air III manifolds
Cam, i'm leaning toward the Crower cam
60919 470/470 231/240 @50 112*lobe center
60243 479/494 228/235 @50 112*
OR the comp cams
XE274H 488/491 230/236 @.50 110*lobe center
I street raced this car for years and years back in the 80's and 90's.So i don't want a turd.Eventuality, i going back with the original T/A 6.6 in a year or so,i just wanted a motor i could beat on for a while and on a small budget.

[gkinch]

I had a very simular combo in my 69 bird, trw flat tops ,stock rods with arp bolts,performer intake,6x-4 heads I ported my self with Jim hands book.91 cc chamber,750 DP carb,3.25 gear with 3200 cont. converter.I had the performer rpm cam which is very close to the crower 60919. the car ran 12.50s@108 the car weighed 3850 with my big a. in it. very streetable and fun to drive! go with the 60919 in my opinion.get some dougs headers you cant beat the fit and craftsmanship!

[MotorHead_811]

I would go with the 60919 thats what im gonna put in my 455 with ported 6x heads

[form74]

Crower 60919 with the lifters is what I used. 455 60 over 6X-4 , ram air manifolds. Schreads the BFG's in a second.

[67'7F6'Bird]

I ran a 455 6X combo years ago with a Comp Cams 292 .507 lift hydraulic and the car weighed 3650, ran 12.5's @110 MPH, 3000 stall, 3.42 gears.

[Cliff R]

Go with the 60919 cam, set the ICL at 109 degrees. With 6X-4 heads, 91cc, we made 455.4hp and 540 tq on the dyno, and went 12.0's at 112 mph. I upgraded to KRE aluminum "D" port heads and went 11.64 @ 116mph. The Comp XE cam mentioned is not enough cam for the 10 to 1 455 engine, you will give up nearly 40hp and make about 30 MORE ft lbs peak torque. The "modern" cam on the 110LSA will simply "cram" the power into the mid-range, and it will end earlier.

We have dyno sheets here from a 455 with 232cfm 6X-4 heads, 414hp @ 4900rpm's, 578 torqe at 3400rpm's. Sounds good till you look at the torque produced at 5000rpm's, 411 compared to over 500ft lbs with the 60919 cam!.....Cliff

[PONTIAC LARRY]

60919 470/470 231/240 @50 112*lobe center ,adv 4 degrees
swap the performer intake for stock iron...

[se428bandit]

Originally Posted by Cliff R

Go with the 60919 cam, set the ICL at 109 degrees. With 6X-4 heads, 91cc, we made 455.4hp and 540 tq on the dyno, and went 12.0's at 112 mph. I upgraded to KRE aluminum "D" port heads and went 11.64 @ 116mph. The Comp XE cam mentioned is not enough cam for the 10 to 1 455 engine, you will give up nearly 40hp and make about 30 MORE ft lbs peak torque. The "modern" cam on the 110LSA will simply "cram" the power into the mid-range, and it will end earlier.

We have dyno sheets here from a 455 with 232cfm 6X-4 heads, 414hp @ 4900rpm's, 578 torqe at 3400rpm's. Sounds good till you look at the torque produced at 5000rpm's, 411 compared to over 500ft lbs with the 60919 cam!.....Cliff

Cliff i was hoping you would chime in because you have used this cam.Cliff,what is the turn around time to have you do a Quadrajet for me?Pontiac larry,i was thinking of "maybe" adv the cam 2 degrees but wouldn't 4 degrees be a little too much.With the 2800 stall it would already be in it's powerband when the converter stop slipping.

[400 Lemans]

From reading the older posts by Cliff and Ken Ace Brewer on the crower cams they all require 4 to 6 degrees advance just to come in on the installed icl. I think some people without good performance results probably installed theres straight up and ended up 4 to 6 degrees retarded.I dont understand why crower cams are this way as most others arent. I am probably going to upgrade to a 60310 from crane 278 and will go with the 4 degrees advance because i have no access to a degreeing wheel and help.

[rtanner]

or save some money and time get a melling ra4 from autozone overnite, its already been discussed on here all those hydraulics come from cmc. different mfg change the specs slightly on paper to make em look like their own, i was surprized when we measured a melling a gm n.o.s. ra4, and crane 288- something, they were all from cmc (stamped on the core) and they were all identicle. oh yes definitly advance it 4 degrees you wont be sorry!

[Cliff R]

Cliff,what is the turn around time to have you do a Quadrajet for me?

About the same as we always run, about 6-8 months, a bit quicker if you have a clean unit and just need it custom tuned. That line is getting longer as well, due to Summit and the Internet selling "High Performance" Stage I, II, III etc quadrajets as bolt on deals.

Almost 30 percent of our business currently is from some of the nicest looking carburetors you've ever seen built at other shops, then sent here to be tuned exactly for the application.

Yes, most of the Crower cams we've installed will require 4 degrees or so advance, which isn't a big deal. Degreeing a cam is NOT an optional part of a high performance engine build. If you want "plug and play" camshafts, get the Melling 068 grind and put it in Dot to Dot, EVERYTHING else should be degreed exactly to where you want it.....FWIW.....Cliff

[se428bandit]

Originally Posted by Cliff R

Cliff,what is the turn around time to have you do a Quadrajet for me?

About the same as we always run, about 6-8 months, a bit quicker if you have a clean unit and just need it custom tuned. That line is getting longer as well, due to Summit and the Internet selling "High Performance" Stage I, II, III etc quadrajets as bolt on deals.

Almost 30 percent of our business currently is from some of the nicest looking carburetors you've ever seen built at other shops, then sent here to be tuned exactly for the application.

Yes, most of the Crower cams we've installed will require 4 degrees or so advance, which isn't a big deal. Degreeing a cam is NOT an optional part of a high performance engine build. If you want "plug and play" camshafts, get the Melling 068 grind and put it in Dot to Dot, EVERYTHING else should be degreed exactly to where you want it.....FWIW.....Cliff

Ciff thanks for the advice,i bought an 60919 yesterday.Hoping to send you the carb [17058266] next week,Thanks

[Junkyard Dog]

Originally Posted by Cliff R

Cliff,what is the turn around time to have you do a Quadrajet for me?

About the same as we always run, about 6-8 months

Wow!

[oscodagp63]

Originally Posted by PONTIAC LARRY

60919 470/470 231/240 @50 112*lobe center ,adv 4 degrees
swap the performer intake for stock iron...

Im running the the performer with a qjet on a 455. what is it you dont like about the performer series? Just curious...

[Half-Inch Stud]

Kinda of embarrased to sy buy we put a Ram IV High Lift (041) cam in the 455 +060 6X headed Auto-Tech build motor. Runs super on street with 12vac in gear. Only the G-body driveshaft keeps this off the track.

[1qikta]

Russ,

Glad to hear you are finally moving forward on the TA. Let me know if I can help at all.

[71 Ventura II]

Points of interest. Advancing the ICL of the cam increases the lowend power production. Since your build has less rear gear ratio and less stall converter you will need the low speed torque to move a relatively heavy vehicle. Generally the cam you have selected, when used in a 455/4.21 stroked engine, is matched with a 3000-3500 converter and 3.42-3.73 gears depending on tire height used.

As stated, there are so many manufacturing tolerances surrounding the individual parts responsible for the camshaft installation, degreeing the cam should be SOP. IMHO As a testiment to what "Could" happen: The last cam install in my 406 started out 20+ degrees advanced when installed dot-to-dot! Come to find out the "DOT" on the cam gear was mismarked during manufacturing. The point is, you roll the dice anytime you don't check.

I agree that cam should be degreed at least at ICL 109 if not in the ICL 106-108 range to match well with the surrounding driveline parts mentioned. Good luck! JD

[lust4speed]

Just another plug for degreeing all cams. Two Crower cams I have installed lately were retarded, one 3-1/2° and one 4-1/2° - but then installed a 60919 cam and it was 1° advanced when first installed straight up. So don't form an opinion that all Crower cams are going to need massive advancing to get them where they need to be. Always enough deviation between cams (and timing sets) to require measuring every time.

[se428bandit]

Originally Posted by 1qikta

Russ,

Glad to hear you are finally moving forward on the TA. Let me know if I can help at all.

Thanks Jay,it feels good to MAYBE getting it running,it been to long [11 years]since i have driven it.I have owned it since July 15,1985.The last time i was at the track [Silver Dollar]it weighed 3555 without me in it and a 1/2 tank of gas.

[PONTIAC LARRY]

Originally Posted by oscodagp63

Im running the the performer with a qjet on a 455. what is it you dont like about the performer series? Just curious...

The Performers are OK, we have had some hi-12 sec street cars with them but.. At the end of the day ..it seems there are more guys running 11's and 12's with the iron Qjet setup. Ports on the Edelbrock Performer are smaller than the stock iron.. If 13's are all you need then no problem..