My motor is a .030 over 454 (460) with 10:1 compression and my cam specs are quite similar to yours, although mine is a hydraulic roller so it's a touch more radical.
.587 intake lift, 226 duration @ .050 .610 exhaust lift, 234 duration @ .050 112 degree lobe center The idle is quite lopey but I'm still able to pull 12 inches of vacuum at idle so my power brakes still work. It keep the idle about 1000 so it doesn't shake the car too much. I knew it would be the way it is, so I'm good with it. I kept my car street legal, but it will see a whole lot more track than street and I built it accordingly. I have a 3000 stall converter and 3.89 gears. The motor still makes plenty of bottom end power but it's pretty lumpy. The cam you ordered would work with your 4.10 rear gear and 4 speed, although, based on your posts, this cam will be stretching the limits of what you say you are comfortable with. I agree with Keith. The cam is only one varible in the whole scheme of things. You need to decide what the car is going to be used for. If you are using it as a daily driver, or even a Sunday driver, the cam you ordered is probably way too big. If a lopey idle is all you are worried about the cam will be fine but the lumpy idle will come with a cost. If you want something you can "take out of town", go with less cam. Bill Vander Werf Craig & Cerena Robertson wrote: > Just had the guy rebuilding my engine to order the cam for it. > I'm glad he always ask me if the part his is going to order is ok, but > hell I know nothing about engines. It's like asking me to read > Chinese. The one I picked for my Big Block is as follows: Duration > 050 IN 224Duration 050 EX. 232Lift IN > 527Lift EX 553Lobe Center 114 Says: > Lopey idle, Wild Street/Strip I'm looking for something that sounds > good, but I don't want something that I can hear myself think when > riding in the car. Can anyone tell me what I just ordered. Thanks > Craig Craig & Cerena Robertson wrote: > Thanks Keith > The engine is a 396 bored .40, it has a steel crank from a 427, and forged >pistons. He is > ordering Roller Rockers, they said something like 1.7. The heads are still being >worked at the > machine shop. He is waitng to hear from them before ordering the correct lifters >etc. I'm told > that my rear is a posi 4:10, If so I want to replace it with a 3.55 so that I can >take it out of town. > The car is a 4 speed. Right now the car came with P295 50 R15's on the rear. There >to big so > I'd like to sell them ( hate to because they're new) and so with something not as >wide, maybe a > P235 60 R15 on rear with a 70 series on front. This is all that I'm sure of. I have >headers and > flowmasters installed. > ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
