87zz28

I recently found a good deal on an Edelbrock rolling thunder 2209 camshaft on my local craigslist new in the box. I know this is for a vortec engine but i would use it on a 1973 350 block. Does anyone know if it can be used with my block and would it be worth the hassle if i need to modify anything to make it work?

sofakingdom

iTrader: (1)

If it's a roller cam, as would be likely for a Vortec motor, you'd need the original style roller lifters (the ones nowadays called "retrofit", with link bars), a late-model timing set with the smaller bolt pattern on the cam nose, a cam button small enough to fit down among the bolts (pretty small... AFAIK none is made like that, takes a bit of fabrication), push rods that are about .400" shorter than the ones in your motor now although the exact length can't be known until after final assembly, and a spacer of some sort to occupy the space that the factory-style retainer plate would go in (can be made from an actual retainer plate).

87zz28

That sounds like alot of work and stuff I would easily screw up. Can anyone recommend me a good cam. My set up on the new motor will be an Edelbrock Performer Intake, ported 292 turbo heads, i think around 9.5:1 pistons and a 650 cfm holley. I was thinking about staying in .450-.500 lift range. Any good recommendations from what you guys run?

dmccain

iTrader: (2)

Look at Herbert cams. That's what we have used a lot they have some nice grinds. On the cheap a Summit K1103 or K1104 are a pretty good grind for a street engine also.

86LG4Bird

iTrader: (1)

This one:
https://www.summitracing.com/parts/c...38-2/overview/
https://www.summitracing.com/parts/cca-cl12-238-2

Or, more budget friendly:
https://www.summitracing.com/parts/sum-k1103

87zz28

Thanks for the help. Considering running this https://www.summitracing.com/parts/cca-12-246-3 anyone ever use this one?

86LG4Bird

iTrader: (1)

That's a bit too much duration for 9.5:1 CR. It would be weak at low rpm's..
...and considering your intake and heads, would be choked at higher rpm where it's meant to operate.
Use a smaller cam. The car will feel faster, and will BE faster

midias

That is the cam the previous owner installed in my motor, ran decent when I had a lower compression 8.8-9:1 882 heads it worked made OK power car ran a 14.1 with the previous owner driving. Idle was OK but with those crappy heads, 1.5" headers and 2.5" dynomax exhaust it was choked

I bumped compression up going to new patriot heads, 76cc to 64cc car ran much better, idle was smoother power way up. I also freed up the exhaust with new headers and a catback.

That cam makes some noise with its fast ramp but makes good power at all RPMs, revs smooth and idles smooth around 800-1000 rpm. It likes vac advance at idle so I run full time vacuum. I get about 12-14" at idle.

87zz28

Midias, your set up sounds similar to mine. My heads are 64cc chambers ad im running hooker 2055s to a full 3" cat back. Im not sure of the pistons i have exact compression, I can't find much info on them. Hopefully i will have the block at the machine shop by next week and I can find out what they are.

midias

I would get the kit with the lifters too

https://www.summitracing.com/parts/cca-cl12-246-3

Or even better the entire kit

https://www.summitracing.com/parts/cca-k12-246-3