Compression test??

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BJR Racing said:
Mullinax,
They look very good on your engine and it looks like the mateing surfaces are as they should be without the intake gasket.
Good job! I'll get your rocker shaft spacers out to you Tuesday, have fun with them as Im sure you will.
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Bobby!!

Yeah the heads and intake match perfect and I mean perfect. I didn't want to paint the heads (LOL) but they are drying right now.

Thanks again Bobby!
 
Awesome dude.

Mullinax, sorry I missed you last week because I really would have loved to met you at Bobby's.
I also need to talk to him about a murderous 360 for my B'cuda.
 
Well fellas I got the motor running again finally. Man it was a lot of work and my back is sore from bending over in the engine bay!

The motor has a smoother idle compared to the cam I had in it but I already new that was going to happen. But the motor has a deeper throaty sound to it like it never has had before. It's got to be because the heads are working like that should. Its strange how a good set of heads can make the car sound difference. I can tell the motor has more torque/horsepower and throttle response is quicker. I'm still running the 500 cfm carb and going to try my friends 750 cfm when I get a chance. The motor needs a 622 cfm carb by calculations so I can't wait to get a bigger carb on there to see how it will run. Probably going to put a 650 on it for the long haul but I'm just going to try the 750 since it's free. LOL.

Thanks goes to Bobby at BJR Racing for helping me get the motor healthy again!
 
Marland,
Did you do another compression test yet? Just courious as to how much you have now and if the readings are still low.

It's really amazing what a few little modification can do in the right areas.
Well you can say that you've been there and got the T-Shirt now............lol

Have fun with it as I know you will.
 
BJR Racing said:
Marland,
Did you do another compression test yet? Just courious as to how much you have now and if the readings are still low.

It's really amazing what a few little modification can do in the right areas.
Well you can say that you've been there and got the T-Shirt now............lol

Have fun with it as I know you will.
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Bobby
Not yet but I will more than likely get to it today. I'm going to get some fresh plugs today so that will be a good time.
 
So did you have to add shims besides the spacers that we sent? Or did they work as intended? I guess they worked OK as your driving the car but need feed back for quality control, input is always best for making a product better. As no one offers these spacers and just like to follow up on parts that we make.
 
BJR Racing said:
So did you have to add shims besides the spacers that we sent? Or did they work as intended? I guess they worked OK as your driving the car but need feed back for quality control, input is always best for making a product better. As no one offers these spacers and just like to follow up on parts that we make.
Click to expand...

The only shims I used was one on each end of the rockers and used only the spacers in the middle of the rockers. Works like a champ. Popped a valve cover today and everything looks good.

Went by and got my friends 750 carb. I thought it was a Holley but it was a Eddy carb instead. Oh well. I put it on and just didn't seem to notice a great amount of difference as I thought I would have. I adjusted the idle mixture and took it down the road. It seems however that the 750 "is there" quicker than the 500 CFM. With the 750 I don't have a over rich condition so that is good for a lil 273. I can tell the way the motor runs that it shouldn't have any trouble lighting up the tires. Been raining so trying to launch the car from off the line would be no use right now. I will get cranking compression results tomorrow.
 
Eddy carbs are usually leaner than holleys so the performance may not be there as to what your expecting, but any gain is a step in the right direction.
 
dumb question,,,what is the 302 head i see people talking about ???
'
im guessing small valve,,hardened seats ??

ide stick with a 600 on the 273,,the smaller the cfm,,the crisper the botttom end,,,bigger cfm,,,more top end,,,but too much cfm can really hurt the over all peroformance,,of A 650 MAX with vacuum secondarys
 
Well I finally got around to doing a cranking compression test and my highest was 149 and the lowest reading was 132. So I went from the highest reading of 115 with the old heads to 149 with the new heads.
 
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