Hello, this is my first time on here so IDK exactly what I'm doing. That being said I am building a 460 and wondering what cam I should get. The specs aren't going to be anything crazy, it is the 1976 version, so it will have 8:1 compression and I'm going to run rebuilt stock heads and valve train. As for performance parts I'll be running a comp cams double roller pre 72 straight up timing chain set to correct factory retard, edelbrock performer RPM aluminum intake, Holley 750 carb and shorty headers plus other random bolt ons. Given it's bottom end is relatively stock besides being rebuilt what cam would compliment everything nicely without ruining low end torque and vacuum. What duration, lift and if you have specific recommendations. Thanks!!!
Mustang Man
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When that engine goes back together it will be 7.7 to 7.9 to 1.
You don't have a lot of options for cam timing that aren't going to kill the bottom end torque needed in your truck.
I generally use our 207 / 219 custom voodoo grind for this type of application. 110 lsa and advanced another 4* over straight up.
If your cylinder heads have OEM springs and umbrella seals you MUST keep lift at less than about .520"
In this case I would use the lower lift comp ex lobes OR a shelf 204 / 214 generic RV cam for lack of a better term.
The OEM cam timing for reference is 193 / 206 on a 113 in at 110 to 113 with a straight up timing set and 118 to 121 with the retarded set. Tolerance variation.
The performance EFI cam of the 90's was 204 / 216 on a 114 which was a good cam for the EFI and that crane grind was similar to the generic I listed.
A properly curved duraspark distributor is an important component.
DO NOT USE THE PERFORMER RPM. The performer is the correct intake here. Block or restrict cross over heat.
A 600 vac secondary properly tuned is more than enough carb.
We recently dyno'd a 1995 EFI take out with 190k miles. 476 tq and 312 hp using 500 cfm at 4100 rpm.
Scotty J. "AKA" The "Mad Porter"
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Ported BBF iron head specialist & Aluminum heads from all sources.
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See the original post.
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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The performer plus cam is 194 / 204 which is little better than OEM. It sure the hell isn't worth nearly $400 for the kit.
OEM is 193 / 206.
If budget is of concern we use factory BB cores and regrind them or we keep the 204 / 214 generic cams in stock and pair them with the made in USA notched cam saver style Johnson lifters.
If your heads are still at the machine shop have them top the guides .080" and reduce diameter for PC seals.
This would allow for more lift using a generic spring package that is better than the OEM springs.
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
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Here is a link to an 87 octane D3 headed towing build we do. 530 torque and 420 ish hp with D3's and near 440 with the "Corrected" pro comps.
Feel free to use it as a guide.
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With no port work and simply back cutting the intake and exhaust valves. The machinist will know. 27* BC
You can get about 390 ish hp.
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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That cam is a single pattern and is a no go for the BBF.
We have the 204 / 214 on a 112 on the shelf with USA made Johnson lifters notched to oil and aid in break in.
Can ship Monday or tuesday.
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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I get that budget is a consideration here.
Rock auto has the melling version of that cam kit with melling lifters here:
Our version of that kit has an engine pro cam and made in USA Johnson lifters notched to oil from the top down for break in. Think cam saver lifters.
Cam, lifters and gibbs grease $429.95 plus the ride.
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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Here is the same kit on Summit with free shipping. Rock auto charges.
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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