MIDNIGHT
Need some opinions on a 360 build-up:
1. What would be a good choice for a cam a little milder than the Summit 8600 and not the 8601?
What I would like to do is buy a cam kit with springs, timing set, etc. so that it takes all the guesswork out of ending up with mismatched parts.
Comp has a kit #K10-215-5. Comes with lifters, springs, locks, retainers, 3 pc. Timing set.
Specs on the cam are:
212 int.
218@50 ex.
477 lift in.
484 lift ex.
110 deg lobe sep.
Has anyone used this one? I don’t know a lot about these numbers or how they make a motor act. I called Comp and they ask me what compression and what kind of rpm range I would be in, and although I wasn’t sure exactly the compression, (I told them 9.5:1) and rpms from idle/1000 to around 5500. He told me to use the cam above. Is it just that easy?
I’m not even sure if the performer intake that I’ve got will even handle that rpm range? Might do the air-gap.
2. What is a good compression to stay around, or what kind of pistons do I need? I’m assuming cast, but what kind of tops? I would like to have the most compression, without obviously having to run any kind of octane boosters or race fuel. I can get the casting numbers off the heads to see what cc’s they are. The motor is from a ’80 waggy.
3. Whats a good quality rebuild kit that will take care of the seals, bearings, gaskets, etc?
4. I plan on using an hei dizzy (selling the tfi/hei setup) and buying the oiling components and timing cover, etc from bulltear
I ask this hoping someone can give some opinions on components they bought for their 360 and was tried and true. I bought and read “BJ builds an AMC” backwards and forwards and although it had the basic engine rebuilding tips, really doesn’t say a lot for what components or parts it takes to build a motor for 350 hp, or 400 hp or 450 hp, etc.
Just looking for a mild/semi hot motor that can be used as a DD. (I don’t live too far from work)
Thanks for any help and advice you can give
tarior
I think you're on the right track, I tend to think that cam will be more like 1500 to 5000 rpm, should be very good in the midrange, ought to work well with the Performer.
Rocknron
I have a 360, I went with the Air Gap, 270H comp cam, 670 holley avenger, had the heads shaved to take the compression up to 9.5 and also cleaned up a bit. I got a D.U.I. ignition and had the stock exhaust manifolds on when they ran it on the dyno. Don't have the engine in my yj yet but on the dyno it started to make power low and ran hard to 5800rpm making 355hp & 385ft.lbs. The 385ft.lbs was at 3000-3200rpm I'm sure a set of good headers would bring up the numbers some what.
MIDNIGHT
exactly the info I'm after. Thanks.
BTW, did you have to have the intake machined on after shaving the heads for a good seal?
Rocknron
I picked out the combo of parts, and had a shop build the engine, as far as I know they never did anything extra to the intake to get a seal, they do a lot of high end builds so shaving the heads is something they do on a regular basis.
