notsojollyroger

did a search and didnt find anything just got my 365 hp 327 back from machine shop and was wondering about this cam or use the oem 30-30

Bluestripe67

I think if you do a search (30-30) in the archives, you will see info on this cam. Dennis

notsojollyroger

still new on the forum thanks for the help:

Powershift

Welcome to the C1/C2 Forum.

Here is one link that may get you started. https://www.corvetteforum.com/forums...olid-cams.html

Go to SEARCH, and then ADVANCED SEARCH, C1C2 Corvette Forum Section, and search under the words "solid lifter 30-30 cam". Hundreds of informative posts/threads. The link I provided is just one.

For what it's worth, I would install the OEM cam. Start with NAPA and Federal-Mogul. The archives has the part numbers you need.

Larry

SWCDuke

Federal Mogul has an exact 30-30 cam replacement (CS118R), but the LT-1 cam (CS1145R) is a much better choice - more low end torque with about the same top end power. If you massage the heads it will make useable power to 7200.

You can buy Federal Mogul OE replacement part at NAPA and most of the big chains.

Go to the following recent thread, then go to the links in post #8.

https://www.corvetteforum.com/forums...m-lifters.html

Duke

notsojollyroger

cant wait to here it run going in a 64 coupe .I know it will be a blast. The more i read the worse it gets . lt1 or 30-30 HELP !

notsojollyroger

For a good street performance gear with a four speed what do you think 3:73 ?

Vet65te

Assuming you have a close ratio transmission, the 3:70's should be fine. If the trans winds up being a wide ratio, you could get by with a lower (numerically) gear ratio.
Mike T - Prescott AZ

notsojollyroger

cant get the specs to pop up

notsojollyroger

its the orig trans i think its a wide

Vet65te

I would have thought a solid lifter 365 horse 327 came with the close ratio even in '64 but maybe not. Is it the original transmission, have any pics of the input shaft that might show the 'rings'? Can't remember when they started doing that little external identifier of the rings but thought it was around 64/65. What rear gear ratio does it have currently?
Mike T - Prescott AZ

MikeM

That 30-30 cam starts getting good a little over 3000 rpm. It'll run okay below that but is a little mushy so if you want performance as in throttle response and acceleration, I'd go with a 4.11 if you have a close ratio transmission or a 3.36-3.55 gear if you have the wide ratio transmission.

I know nothing about a Competition Cams 30-30S cam but I suspect it's a hopped up version of the OEM cam after which it's named. It if it, I'd forget about it.

If you go with the 30-30 cam, set the valves at that spec and do not be misled into tightening the lash down tighter in the interest of less noise, less wear, less performance.

colo63sw

For a street car, I would go with Duke’s advice and get the low end torque LT1; better stop light performance & more ‘seat of the pants’ acceleration.
Driving on the street at 6000+ RPM is almost never a good idea.

notsojollyroger

its a factory 300hp

notsojollyroger

thanks for all the imput

notsojollyroger

havent checked rear gear ratio yet

Vet65te

A lot of things could have been changed since the car was new but most 300 horse Vettes came with a relatively mild rear gear ratio of 3.36 or 3.08 and a wide ratio box. You started out mentioning your 365 horse 327 was coming back from the shop so I assumed (incorrectly it seems) that it was a 365 horse Vette to begin with that might have already had the higher gears. As already suggested, if you do go with a cam like the 30-30 that likes to live in the higher rpm range, a 3.70 or a 4.11 might be best.
Mike T - Prescott AZ

notsojollyroger

what is your thoughts on the lt-1 cam if i dont have a good rear gear

MikeM

You didn't ask me but I don't care for that cam. I don't like the way it performs compared to the other OEM solid cams Chevy has.

If your car was originally a 300 hp, it likely has a wide ratio transmission and 3.36 axle unless somebody has swapped parts.

A 30-30 cam will work with that gear combination in the first three gears as far as performance. In high gear, you gotta' get up around 70 mph for that cam to start to work.

Some here have tried the LT 1 cam and liked it. Others think it's a bad idea.

The LT 1 will have a pretty steady acceleration rate all the way from down low until it seems to run out of breath way before the rest of the engine. The 30-30 is a little soggy down low but if you hold the accelerator about half way down in the lower gears, when the engine gets "up on the cam", you can feel the engine coming of stronger and stronger and it doesn't run out of breath at high rpm.

Depends on what you're looking for. Your choice.

notsojollyroger

thanks tuff decision