is comp cams 268H good for Olds 455

[kcsteck]

I had 280H cam in my Olds with headers,vicotr intake and just lost cam lobe for some reason. Maybe I adjusted incorrectly is my guess.everything checks out except cam lobe and the lifter. I need new cam and comp cams tech suggested use the 268H with about same lift and better rpm range 1600-5800
what ya all think.
Casey

[DelawareDave]

I had a 268H in a 502 chevy and it worked good.
Proper break-in will make or break a new cam. I have installed new cams, and wiped a lifter within 10 minutes, during the break-in period. Replaced with another new one, and no issues after that, doing everything the same way. Go figure.

[396_WAYS_TO_SPIT]

keep the comp 280h. It is a good cam and will pull hard. When you breakin the new cam put a bottle of gm's "EOS" in the oil. It will help keep the lobes on the cam. also, run about 2qts of oil more than capacity. This will allow hot oil splash on the cam......

[Taylorman]

Another option when breaking in the new cam is to run Shell Rotella 15W-40 diesel engine oil.

[396_WAYS_TO_SPIT]

Another option when breaking in the new cam is to run Shell Rotella 15W-40 diesel engine oil.
yup, that too

[396_WAYS_TO_SPIT]

Another option when breaking in the new cam is to run Shell Rotella 15W-40 diesel engine oil.
yup, that too

[malcolm]

I would run the 268 cam if you have the low compression pistons. I went with the 280 in mine because my comp. is 10:1. I am a little disappointed in the smooth idle of the 280. I thought it would at least have a little lope to it.
396, did your 280H have a lumpy idle? Mine almost sounds like an RV grind.

[kcsteck]

i had lopy idle with 280 but i do not know what compesion ratio my pistons are. they are flattop 30 over is about all i know. since they are flattop does that mean low compresion?if low compresion 268 or 280
casey

[PANTHERJET]

since your on the subject i have a 292h in my 455 and seems to idle fine i thought it would have been a little rough anybody else running that cam

[kcsteck]

mine with the 280 was a slug out of the hole. did good once got to upper rpms. i need better out of the hole. maybe the 268 would be better? i want better acceleration from a deadstop to get on plane and all.im pretty sure my pistons stock compresion ratio and i have big valve heads(Ka) heads.victor intake demon 750 and headers.
casey