sixt9stang

Got really busy needing to rebuild my G8's 6.0 which took all the money I was going to use on my 302. :( Now coming back to this though I brought one of the springs into the machine shop I had do my 6.0 heads but they don't have anything to measure the spring rate. My next question is on the valve seals. Are they supposed to just be loose on 302 heads?

Thanks for the updates!

What a build. So impressed.

This car needs to be in a magazine.

That looks really nice. My headliner is in good shape but still might want one of these.

I was just thinking when I saw a thread started by you that I hadn't seen you post in a while. So sad to see the post now though. I hope you are able to bring everything back better than ever.

Yep. That is what I measured the valves at.

He does say $900 not including machine work. He would be able to hop it up a bit on $900. He just has to be mindful that since the block has been rebuilt once that it may not be able to be bored out more meaning he will need a new or used block.

Ya. I am now looking at the cams that you suggested and keeping an eye out for a cheaper used cam. From what I have been reading the heads are truck heads with a little bit smaller combustion chamber, upping the compression ratio a bit. But they do not flow that well.

The engine is completely disassembled and on the stand. Got it back from the machine shop a few months ago.

If the engine has been rebuilt once already you will want to have the block checked to see if it has already been bored out.

Thanks Mike. I will let you know once I have these checked out. I will have to rent or buy a spring compressor. It is about the only tool I don't have.

Sounds like a plan. Couldn't tell you on that. I am still learning a lot of stuff. I have only rebuilt a few engines and still learning a lot when it comes to the cam and valvetrain. I would have to look at my old heads and see how they compare.

Looked at the heads again this morning and got some pictures of the springs that are currently on them and some different measurements. The head casting is C9TE. There is also the following stamped: 2C28 Valve Spring Side: Valve Spring Top: Valve Spring measurements: Height with retainer: 1.85" Height without retainer: 1.72" Diameter: 1.25" I think the guy I got the heads from said they were K-motion springs. I have no idea of the seat pressure or anything. The measurements I took were done with a digital caliper and I tried being as accurate as possible. Edit: I think the springs are one of these two: K-700 1.265 diameter single M-200 spring good for camshafts up to .500 lift. 120# @ 1.700, 375# @ 1.150, coil bind at 1.050. K-750 1.265 diameter single M-300 spring good for camshafts up to .610 lift. 130# @ 1.700, 395# @ 1.150, coil bind at 1.050. Also, I had mentioned valve float. Thinking about it more, that was on the original '69 heads with the original valve springs. Not these springs. I did not have these heads on very long before I ended up rounding a lobe on the cam from having a rocker adjusted wrong. Or maybe these springs are too much pressure for an Edelbrock Performer cam.

So much information to process. Going to start looking at my heads some more when I am home. Edit: not my thumbnails and also why does this happen on this forum?

I have to look at the heads that I have more. They are not the original '69 heads as I got them from a buddy that had put screw in studs and did some other work to them. I will get some pictures and maybe some measurements so that maybe I can get some help on springs.

Thanks! I will start checking those out.

I missed the E303 cam. Looking at the following cams that are close to specs that Mike mentioned above. https://www.summitracing.com/parts/edl-3722/overview/make/ford https://www.summitracing.com/parts/cca-35-440-8/overview/make/ford https://www.summitracing.com/parts/crn-444231/recommendedparts/make/ford?prefilter=1 I will have to save up some more before ordering but I am really looking for advice so that I can start gathering parts to get my engine put back together and I greatly appreciate all the help.

I am mainly looking for what cam or specs would work for what I am looking for. So mostly fun cruising and hopefully a little road racing. You had said the two cams were not good, would you be able to suggest one that would be good ignoring other aspects. I can figure out the piston to valve clearance and other things. Mostly looking for what might be a good setup in the future for when I have money.

Should be able to tell from the pictures if the gear is good or not. I would love to hear your opinion though on what you would run on a small budget.

You are correct. I am told it was ran for 600 miles and then pulled. What would be a decent combo for cruising and a little bit of road racing? I was thinking of upgrading to a dual plane intake in the future also. With the Edelbrock performer intake and cam the car was very strong but floated the valves above 5800 rpm so I don't want to run into that situation again.

First, thanks to everyone for the advice. I was looking specifically at the E303 cam because I found one very cheap. Barnett, I know that there is a lot more to building an engine than throwing a cam in it. I am not an expert, and that is the reason for posting for advice. Some more info: I was running the Edelbrock Performer Intake with the Performer Cam before taking a lobe out. The engine is bored .030 over and I have SpeedPro flat top pistons. I do not know if I will stick with the same intake though as switching the intake is a lot cheaper than the cam. I am well aware that an F150 is a truck. The F150 also came with the 4R70W transmission. In those transmissions I read somewhere that it has a 2400 rpm stall converter. If what I read is wrong on that feel free to point me in the right direction. Let me know if any other info is helpful. If neither cam is good; what would be good? In the end if a better cam is significantly more money than the E303 at $100, I might just get the E303 and run that till I have more money to put into the car.

Comp specs: https://www.summitracing.com/parts/cca-cl35-430-8 Basic Operating RPM Range: 2,500-6,000 Intake Duration at 050 inch Lift: 224 Exhaust Duration at 050 inch Lift: 224 Duration at 050 inch Lift: 224 int./224 exh. Advertised Intake Duration: 280 Advertised Exhaust Duration: 280 Advertised Duration: 280 int./280 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.560 in. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.560 in. Valve Lift with Factory Rocker Arm Ratio: 0.560 int./0.560 exh. Lobe Separation (degrees): 110 Ford E303 specs: https://performanceparts.ford.com/part/M-6250-E303 Duration int. 282° Duration exh. 282° Lift .498 Lobe Separation 110° Duration at .050 lift is 220

Thanks. I will give them a call this week. I was planning on calling anyways to get advice on springs.

Building a 302 roller engine and after emailing Comp Cams about what I was looking for they suggested I get the 35-430-8. I will be running an 8.8 rear with either 3:55 or 3:73 gears. Hopefully will be putting a 4R70W in at the same time and will probably use an F150 torque converter which I read somewhere has a 2400 stall. I will be mostly cruising with the car but hoping to get into a little bit of road racing. I have long tubes, 1.6 roller rocker arms on mostly stock heads (a little porting), and ran a Holley 600 carb in the past. My question is, would the Ford E303 cam be an ok cam? I am broke right now so looking to get by a little cheaper than the Comp setup and I found an E303 for $100. I have read quite a bit about the Ford E303 and it seems like it would suffice but wanted more opinions.