Ashley's 1980 CJ& Laredo Build Thread

[Blown7]

Not sure never tried, I'm sure Matt or someone else could answer that. Maybe has something to do with valve interference??

I've only played with the bigger engines. I've used the 304 stuff on the 304 stuff and my reference book (the book printed in the early 1970's AMC Performance printed by AMC in house engineers or something like that) that tells all about modding and swapping engine parts is at work.

A 360 block would be a great building block to modify, cheap, and plenty of options`.

[tufcj]

Will heads off a 360 work?

RV cam; edelbrock 4bbl intake; 1406 carb & headers.

With the overbore on your 304, you MIGHT be able to use 360 heads. 2 things you'd have to watch for would be valve to cylinder wall clearance and valve to piston interference. Since the 360 head has bigger valves, the valve pockets in the pistons won't be in the right places and the intake valve may touch the cylinder wall when full open (the bigger bore may solve this). With a smaller lift cam, it may not be an issue. You don't really gain any performance, because the valve is shrouded by the cylinder wall.

On the one performance 304 I built, I went to 1.94 and 1.50 Chevy valves (stock is 1.78 and 1.40). I wish I still had those heads, hung on to them for a long time, then sold them for a song. If I still had them, I'd donate them to Ashley's project.

Bob
tufcj

[rollbar]

Thanks everyone. We have some 304 heads that were donated and better than the 360 we just got today. So she is stating w/the 304 heads.

Question, are Sealed Power Bearings better than King Engine Bearings?

http://www.summitracing.com/search?S...earings&page=2

We are going to pull her pistons/crank tonight so we can hot tank the block-I guess ai should see what bearings are in the engine and order the same MFG since we are not going to turn the cranks etc UNLESS we find another problem.

Thanks,
Jim

[rollbar]

Thanks everyone. We have some 304 heads that were donated and better than the 360 we just got today. So she is stating w/the 304 heads.

Question, are Sealed Power Bearings better than King Engine Bearings?

http://www.summitracing.com/search?S...earings&page=2

We are going to pull her pistons/crank tonight so we can hot tank the block-I guess we should see what bearings are in the engine and order the same MFG since we are not going to turn the cranks etc UNLESS we find another problem.

Thanks,
Jim

[tufcj]

Glad you found a set of heads.

I don't think one bearing is better than the other. I've actually heard good things about King bearings, although I've never used them (they never seem to have been in stock when I needed bearings). Most of my engines have gotten Clevite bearings.

Bob
tufcj

[rollbar]

Ok, Ashley pulled the trigger and bought the Cam kit and will buy a few more items next week.

http://www.summitracing.com/parts/cca-k10-214-5

[rollbar]

Parts are in :)

[rollbar]

Ok now the fun begins.

Note: the machine shop said to run the Break-in oil for 500 miles.

Cam break-in for 30 min then change the filter and add one Qt of the 10w30 for another 500-1k miles ( depending on how we want to do it).

[rollbar]

Unwrapped the engine and starting the work.

[rollbar]