Sbm La camshaft

-
dartfreak75

dartfreak75

Restore it, Dont part it!
Joined
Aug 10, 2011
Messages
11,571
Reaction score
9,482
Location
Virginia
Looking for a camshaft for my 318 been looking for Ebay just seeing what i can find on here. New or used is fine not looking to spend more than 150 bucks or so thanks
 
dartfreak75 said:
Looking for a camshaft for my 318 been looking for Ebay just seeing what i can find on here. New or used is fine not looking to spend more than 150 bucks or so thanks
Click to expand...
the summit cams would be under that budget..... 6900/6901 cam kits
 
318willrun said:
the summit cams would be under that budget..... 6900/6901 cam kits
Click to expand...
Yea the 6900 is the one i just sold. Alot of ppl here convinced me it was a bad fit for my combo. I am between the comp xe256h or xe262h or the summit 1789. (Which is the one you used in the 500 buck 318.) If I buy new I was just wanting to see what it there maybe find a good deal on a used one. I have new lifters already btw.
 
I have a 80s TRW 340 reproduction cam and lifters used but in good condition, These are vintage quality parts. $100 plus shipping from 18453
 
dartfreak75 said:
Yea the 6900 is the one i just sold. Alot of ppl here convinced me it was a bad fit for my combo. I am between the comp xe256h or xe262h or the summit 1789. (Which is the one you used in the 500 buck 318.) If I buy new I was just wanting to see what it there maybe find a good deal on a used one. I have new lifters already btw.
Click to expand...
I'd have to be reminded.... is this the 318 that's getting cut 360 heads?
 
I have a brand new cam I bought about 15 years ago and never used. I dont have any record of the specs but it was bought for a stock 318 and was a little better than a stock 4Bbl cam. $65 shipped
 
dartfreak75 said:
No 302 heads home ported. Stock valves. Headers with 340 intake.
Click to expand...
what was there reason the 6900 or 6901 cam kits were wrong? Sure, there are better choices, but not sure they are bad choices for cam/lifters and staying well under the money you set aside for the cam
 
Just so you know,
The XE256 is rated at 256/262/110 at .006 tappet lift.
Here are the events of the XE256, in at 106*
Intake; opens @22 closes @54; Exhaust; opens @65 closes @17
The durations are;
intake 256, compression 126,power 115,exhaust 262, overlap of 39*
At .050 the durations are 212/218/-5*overlap
Next
The factory 360-2bbl cam IIRC, is rated 252/260/111 at .008 tappet lift. I know of no way to convert this to .006 like the Comp. Maybe Wyrmrider has the specs. But I can tell you that I believe the Mopar cam will be bigger advertised at .006 than the Comp, also, at .006
Warning; I'm making stuff up here;
But lets gross it up by just 2* at each end. Then the 252 becomes 256/264/111 ~.006 tappet lift. If that is true, then in at 109* the events are;
Intake;opens@20 closes @56;Exhaust; opens @66 closes @18.
The durations are ;
Intake 256, compression 124, power 114, exhaust 265, overlap is 38*
At .050 the durations are unknown to me, but possibly a tad less than the Comp.
Now compare them.
Comp; intake 256, comp 126, power 115, exhaust 262, overlap of 39*
Mopar;Intake 256, comp 124, power 114, exhaust 265, overlap is 38*
The Comp wins at lift tho .447/.455 compared to about .410/.410

If you already have a good 360 2bbl cam........ IDK........... I wouldn't spend my money on the Comp XE256.
I have run that 360-2bbl cam in a 318, but without a compression boost, the bottom did get a lil softer. The 2800TC fixed that. That 2800 fixes a lottachit. I think you could get away with less TC, maybe a 2200 with 3.55s.I just went with the 2800 cuz I worked at a trans shop at the time,they had one on the shelf,and they cut me a huge deal on one, lol; so I took it home on Friday night, and drove to work on Monday morning with the biggest grin you ever saw. In traffic it was amazing. And it was 45 minutes each way to work, so I had a lota,lotta fun.

Wymrider has posted several times about his findings on Comp cams, as well as some other cams.
 
Last edited:
comp 256 vs 262 is almost a no brainer

262 is peaky with only a 10 HP gain at peak vs the 256 which has way more power under the curve and comes in lower.

disclosure- this is per the comp AI dyno program using the 86 318 with 302 heads specs I input.
 
318willrun said:
what was there reason the 6900 or 6901 cam kits were wrong? Sure, there are better choices, but not sure they are bad choices for cam/lifters and staying well under the money you set aside for the cam
Click to expand...
The reason was that the slow ramps and the high abdc numbers would lower my already low compression. And take my dcr into the very low range. It has a @50 duration of 204 with an advertised duration of 276. My scr is gonna be 8.9:1 if I use a .028 mr gasket head gaskets
 
dartfreak75 said:
The reason was that the slow ramps and the high abdc numbers would lower my already low compression. And take my dcr into the very low range. It has a @50 duration of 204 with an advertised duration of 276. My scr is gonna be 8.9:1 if I use a .028 mr gasket head gaskets
Click to expand...
ok... lol
 
AJ/FormS said:
Just so you know,
The XE256 is rated at 256/262/110 at .006 tappet lift.
Here are the events of the XE256, in at 106*
Intake; opens @22 closes @54; Exhaust; opens @65 closes @17
The durations are;
intake 256, compression 126,power 115,exhaust 262, overlap of 39*
At .050 the durations are 212/218/-5*overlap
Next
The factory 360-2bbl cam IIRC, is rated 252/260/111 at .008 tappet lift. I know of no way to convert this to .006 like the Comp. Maybe Wyrmrider has the specs. But I can tell you that I believe the Mopar cam will be bigger advertised at .006 than the Comp, also, at .006
Warning; I'm making stuff up here;
But lets gross it up by just 2* at each end. Then the 252 becomes 256/264/111 ~.006 tappet lift. If that is true, then in at 109* the events are;
Intake;opens@20 closes @56;Exhaust; opens @66 closes @18.
The durations are ;
Intake 256, compression 124, power 114, exhaust 265, overlap is 38*
At .050 the durations are unknown to me, but possibly a tad less than the Comp.
Now compare them.
Comp; intake 256, comp 126, power 115, exhaust 262, overlap of 39*
Mopar;Intake 256, comp 124, power 114, exhaust 265, overlap is 38*
The Comp wins at lift tho .447/.455 compared to about .410/.410

If you already have a good 360 2bbl cam........ IDK........... I wouldn't spend my money on the Comp XE256.
I have run that 360-2bbl cam in a 318, but without a compression boost, the bottom did get a lil softer. The 2800TC fixed that. That 2800 fixes a lottachit. I think you could get away with less TC, maybe a 2200 with 3.55s.I just went with the 2800 cuz I worked at a trans shop at the time,they had one on the shelf,and they cut me a huge deal on one, lol; so I took it home on Friday night, and drove to work on Monday morning with the biggest grin you ever saw. In traffic it was amazing. And it was 45 minutes each way to work, so I had a lota,lotta fun.

Wymrider has posted several times about his findings on Comp cams, as well as some other cams.
Click to expand...
I appreciate this info but I dont really really understand what those events mean? I understand the basics from what iv learned from you guys but you lost me just know!
 
I have a 360 2 bbl cam for sale. Check it out in the parts section.
 
@dartfreak75 , I moved this thread from Wanted to Small Block Tech. It has turned into a small block cam choice thread.
 
Who thinks something with low RPM torque lower than a stock 2 BBL 318 is a better street engine? LOL

Everyone knows that there is point where lower and lower DCR will become too soft on the street and the engine becomes a dog. That is not a matter of agreeing.... it is an absolute 'known'. Going cheap on the part that sets engine behavior more than any other part is a compromise that sacrifices DCR. It's just reality.

The real question is 'where is that point of being too soft'? That answer can be subjective. People want their street to be somewhere between 'Instant torque upon touching the go-pedal' to "I love to rev it at each stop light'. But, without experiencing both ends of the DCR spectrum, how can one appreciate the difference? FWIW, I've raced on as low as 5.7 DCR and streeted on as high as 8.3 DCR. It's a good teacher on the difference.
 
dartfreak75 said:
Looking for a camshaft for my 318 been looking for Ebay just seeing what i can find on here. New or used is fine not looking to spend more than 150 bucks or so thanks
Click to expand...
Here you go, DF75. $137 from Jegs: Lunati Voodoo 10200701

258 * intake advertised duration. Good stuff. Make this a harder quiz next time LOL.
 
I think I've alluded to this Carriage before the horse stuff but is this cam anywhere in the ballpark of being ready to be purchased? As I recall your motor isn't anywhere near that far along yet?
I'll give you my standard cam answer and that's to call Ken at Oregon cam grinding the owner. My cam is on its third grind. I've went bigger and smaller. The last time, Cam to my exact specifications meaning lift, lobe separation and duration of both intake and exhaust to my exact specifications. That means any copy of any one of those Brands out there or whatever I want a combination of. 100% custom one off.
IMG_20180925_224546.jpg

$143....
 
j par said:
I think I've alluded to this Carriage before the horse stuff but is this cam anywhere in the ballpark of being ready to be purchased? As I recall your motor isn't anywhere near that far along yet?
I'll give you my standard cam answer and that's to call Ken at Oregon cam grinding the owner. My cam is on its third grind. I've went bigger and smaller. The last time, Cam to my exact specifications meaning lift, lobe separation and duration of both intake and exhaust to my exact specifications. That means any copy of any one of those Brands out there or whatever I want a combination of. 100% custom one off. View attachment 1715244933
$143....
Click to expand...
Stop grinding, you're running out of beef ! :D
 
You must log in or register to reply here.
-

Back
Top