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Old 12-25-2019, 06:37 PM
ponchorob ponchorob is offline
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Default Crower 60245

....anyone using the crower 60245 in a 455 for street Strip .... ?...

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Old 01-13-2020, 10:31 AM
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Quote:
Originally Posted by ponchorob View Post
....anyone using the crower 60245 in a 455 for street Strip .... ?...
Yes, I have ran that exact cam in a Street 455 back in the early 2000's. The best I can remember, it only produced around 7-8" vacuum, but I did not degree the camshaft back then, I just put it in "dot-dot", but knowing what I know now about Crower cams, it should have been advanced atleast 4° to get to the recommended Intake Centerline, as almost every Crower cam I've seen is ground with No Advance built in. Another thing that was hurting that engine terribly, is I ran stock '71 #66 heads on it and TRW flat tops, so it was probably lucky to have a true 8-1 compression.

You would probably have way better result if you make sure you run a tight quench of no more that .039", use a head and piston that will produce atleast 10-1 compression(cast iron head and pump gas) or 10.75-1(Aluminum head and pump gas), and make sure the camshaft is degreed and installed to the Intake Centerline on the Cam Card. Another big help would be to run Rhoads Lifters on it to gain a little more low end and idle vacuum. I personally think you could have good results with that 60245 camshaft in a Street/Strip 455 as long as you take the proper steps above, and make sure to run the proper converter and probably atleast a 3.55 gear. I would say a 3500 stall would work good, but make sure you get a good 3500 stall, so that it is still street friendly, unlike most 3500 stall converters out there. Cliff Ruggles would be a good source for the converter.

Hope that helps
Brian

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Last edited by TransAm 474; 01-13-2020 at 10:45 AM.
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Old 01-13-2020, 01:35 PM
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The 60245 is quite a change from the 60919 you were thinking about. What is the goal for et? I do like the idea of more lift in this cam, probably too much duration for me though.

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Old 01-13-2020, 02:18 PM
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What's the spec's on a 60245 Crower cam?

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Old 01-13-2020, 02:25 PM
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311 / 316

248 / 252

112 LSA

LOBE LIFT
Intake: .341
Exhaust: .349

4 degrees of advance ground into the Camshaft according to Crower.

A lot of seat duration.

.

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Last edited by Steve C.; 01-13-2020 at 02:51 PM.
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Old 01-13-2020, 03:18 PM
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Quote:
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311 / 316

248 / 252

112 LSA

LOBE LIFT
Intake: .341
Exhaust: .349

4 degrees of advance ground into the Camshaft according to Crower.

A lot of seat duration.

.
Thanks.... That cam will like compression and a stall

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Old 01-15-2020, 07:21 PM
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What would be a proper cubic inch for this cam in a streetable engine? Of course with the proper compression ratio...

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Old 01-15-2020, 08:01 PM
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Crower catalog says 428 / 455


HIGH PERFORMANCE COMPU-PRO / Performance Level 4
Intended for the performance oriented hot street application. These cams offer an extended rpm range with emphasis on upper bottom to top end power (strong mid-range). Performance gears, headers, dual exhaust, larger than stock cfm carburetor, performance manifold and increased compression (9.5:1 to 10.5:1) are required. Works well with automatic transmission if matched with proper ring and pinion gears and/or high stall converter. RPM Power Range: 1600-1800 to 4500-4800 / Redline: 6000+

Fact or fiction from the dark ages ?

Actually today they have toned it down a bit since we are seeing the use of more duration being common place. Twenty years ago Crower catalog suggested it was for HOT street/strip situations and 11:1 compression a must. High stall torque converter, low gearing a must and a 6500 plus rpm red line.


.

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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE

Last edited by Steve C.; 01-15-2020 at 08:55 PM.
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Old 01-16-2020, 01:00 PM
joes455 joes455 is offline
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I ran the solid version of that cam 60311. Nice cam 12.1 et 113 mph good vac 10 or 11

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Old 01-16-2020, 01:32 PM
Steve C. Steve C. is offline
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Regarding the 60311 solid flat tappet. Don't remember where but someone noted it was a good substitute in a 455 application for a 041 hyd cam using 1.65 ratio rockers.

292 / 302
247 / 252
.505" / 517"
112 LSA
Lobe Lift- .337 / .345
Lash- .022" intake and .024" exhaust


.

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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE

Last edited by Steve C.; 01-16-2020 at 01:52 PM.
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Old 01-16-2020, 03:33 PM
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I was wondering if the 60245 would be OK for a street driven, 10:1 505 cubic inch engine...?

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Old 01-16-2020, 04:07 PM
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Quote:
Originally Posted by 77 TRASHCAN View Post
I was wondering if the 60245 would be OK for a street driven, 10:1 505 cubic inch engine...?
In my opinion, the 60245 would work great in a 10-1 street 505 engine, even without the use of Rhodes Lifters. That much cubic inch should soak it up pretty well...

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Old 01-16-2020, 04:42 PM
Steve C. Steve C. is offline
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I think many will agree with that.

Sort of related. A question to Paul Carter involving the 236 degree OF cam in a 505 he was building.....

Originally Posted by 72LuxuryLeMans:

"This is not a criticism...... I'm trying to learn stuff. Won't an engine of that size swallow that cam up like it's nothing, meaning it will be very docile for it's size? Would a larger cam such as the next largest Dave has be a better fit for a 500+ ci engine. Or is the cam choice because of the D-port KRE heads? With my admittedly limited knowledge I would think that the SD Edelbrock 325 cfm Street/Strip Heads with the Road Paver grind would be very streetable?
Or was just as simple as giving the customer what he wants?"

Paul's response:

"No, you're right about the cam. I think it's too small also, but it's not for my car. And it's not how I would have cammed it. The customer wants a nice idle, and lots of torque, so he bought this cam. I didn't pick this out. He brought me these parts as part of his plan for what he wants."

As mentioned the Old Faithful has 236 degrees intake duration. The Road Paver has 246 degrees intake duration.




.

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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
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Old 01-16-2020, 05:56 PM
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It while back i was experimenting with the melling 041 with solid lifters tight lash and it ran at the track same mph as the 60311 ,the 041 had better vac. On a 455.the 505 dont know

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