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Aftermarket cam and stock valve train

Posted By: moparmarks

Aftermarket cam and stock valve train - 12/10/09 12:46 AM

Looking for a good low priced cam for my 72SSP budget beater.
I have a 1975 440 truck motor for it. What is a good cam that I can use with the stock valve train? Will be an auto with 391 gears and stock converter.
Was thinking of something with around a 480 lift.
Posted By: forphorty

Re: Aftermarket cam and stock valve train - 12/10/09 01:09 AM

Your stock torque converter will limit your cam choices more than your valvetrain will. I have 20+ years on a 292,.501 Comp cam with stock rockers ,stock pushrods and stock valves in a street car. Only one rocker failure in that time. Bent two pushrods once when i had some overkill MP valve springs on( can't remember the part # but they were the springs that the 590 solid calls for). I wouldn't go more than about 230 duration at .050 with your stock converter. The big Summit cam might be a good choice for a low cost cam.
Posted By: patrick

Re: Aftermarket cam and stock valve train - 12/10/09 03:08 AM

low comp smog motor, I'd use a comp XE268 or voodoo 60302 or 60303.
Posted By: MoparforLife

Re: Aftermarket cam and stock valve train - 12/10/09 03:23 AM

Use valve springs comptable with the cam though. Coil bind or valve float isn't nice to deal with.
Posted By: R70RUNNER

Re: Aftermarket cam and stock valve train - 12/10/09 03:33 AM

Stock springs? voodoo 60301 TOPS... Beware, it's a slippery slope! Valve spings--->valve seals--->valve job and all of sudden your $400 into a cam swap on top of the cam lifters and timing chain. if you go poking around in your engine bring cash!
Posted By: moparmarks

Re: Aftermarket cam and stock valve train - 12/10/09 03:49 AM

Quote:

Stock springs? voodoo 60301 TOPS... Beware, it's a slippery slope! Valve spings--->valve seals--->valve job and all of sudden your $400 into a cam swap on top of the cam lifters and timing chain. if you go poking around in your engine bring cash!




I saved the truck from the crusher thinking that this motor had 63,000 original miles. After getting into it, looks like it may have been rebuilt. New timing chain, freeze plugs, 010 on crank, ect,ect. Very clean inside.
Did I mention low budget beater?lol
Just want to perk it up abit.
Posted By: 318Bruiser

Re: Aftermarket cam and stock valve train - 12/10/09 04:51 AM

If you are going low budget then try out one of the Summit cams. They are around $110 w/ lifters. Unless you can find something for sale on this site, that's about as low as you are probably going to get.
Posted By: DaytonaTurbo

Re: Aftermarket cam and stock valve train - 12/10/09 05:32 AM

I run the voodoo 60303 with stock rockers/pushrods no problem. However heads are aftermarket. Like suggested already, you will have to watch out for coil bind and valve guide to retainer clearance at lift. I think someone on here said they ran the big summit cam with stock springs, however I would replace them.
Posted By: patrick

Re: Aftermarket cam and stock valve train - 12/10/09 12:59 PM

I'd at the very least replace the springs with comp 916's.
Posted By: moparmarks

Re: Aftermarket cam and stock valve train - 12/12/09 03:28 PM

I like those Voodoo cams. I also like that they are 3 bolt except this motor looks to have a new 1 bolt timing set. Man, Jeggs charges 60.00 more than Summitt for these.
If valve bind or float maybe a problem then I might just leave the stock one in. Maybe put in the 454/454 Comp cam that I have.
I think the Summitt cams have to much duration for the lift that they have for my setup.
The focus is low budget here. Have 40.00 in this new Comp cam and lifters.
Posted By: PowerWagonDude

Re: Aftermarket cam and stock valve train - 12/12/09 03:54 PM

I ran the big Summit cam-224/.465-in a 1968 440 stock valve train. It ran 14.90 @ 92 mph in a D100 longbed truck with no traction. Never had a valvetrain problem. I used to drive it over 100 miles round trip to the track. One time I made seven passes. I pulled that 440 out of a C body that I paid $350 for. Fresh 906 heads and that cam should run low low 14s

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