http://cgi.ebay.com/ebaymotors/ws/eB...ADME:X:ON:US:2


Is it already overpriced?

 

If the block is as good as the ad says I would give $1500 if I were in need of a 428. I bet it sees $2000 before it is all over with.

 

I wouldbe very leary of this auction. It states it is a SCJ block, but never offers a casting # or any other kind of proof. Doesn't list acctuall bore diameter just says .020" over. That may be true and he may have the pistons going with so it won't become a problem. I would ask alot of questions if you are going to bid. I wouldn't use those KB Hyperetic pistons. That is just me. i would use a good forged piston. The only ones I know of that keith Black makes for FE's are cast. Again that is just me.


Scotty

 

I asked what compression ratio he thought would result from use with Ed AL heads, he said it would be about 10.4:1

Does that sound right? Is that pump gas friendly?

If so, I think something like this would be a nice compliment to my intake, carb, cam, all MSD ignition and exhaust.


Can you run a desktop of this setup?

Crower power beast cam- let me search for the SPECSs.

here they are:

Cam Specs,
Grind Lobe Center :292H/112D
Advertised Duration (Intake): 292, (Exhaust) : 302
Duration @ 0.50 in. (Intake) : 214, (Exhaust) :224
Gross Lift(1.76/1.76) (Intake): .521", (Exhaust): .547"

 

Personally, I would ask straight up for the casting numbers. The date code is about right for the SCJ, but the compression seems a little low. Stock SCJs had 10.6:1. I could be wrong on this, but would'nt the .020 overbore increase the compression? I dont have all the numbers handy, but it think that is right. I would also ask for more pics. Other than that, if its genuine, $2500-$3000 is a more reasonable assumption for a rebuilt SCJ short block. I bought my rebuilt CJ in '95 for $2500. Add the counter weight and lemans rods, subtract the heads and you still come up around $2500.

Stryder

 

To be completely accurate Greg you will need to either post the valve events or the intake centerline. I will do one without but it won't be accurate. Post the .050 valve events if possible becasue it will be much more accurate especially with this cam. If you have both I will show you why.

EDIT: I just looked at crowers site. They went from having no spec cards on their site to having the best spec cards in the business. One drawback; when I enter your part number it comes up with a totally different cam. Might email them and let them know and at the same time aske them for the specs.

 

crower part number is 16903

all the specs I can find are here.

http://www.crower.com/misc/m_cat.shtml


I've got the spec card somewhere in the shop. Maybe I'll post it soon.

 

Here ya go. I found and scanned my Cam Spec card.

http://www.thedreyerfamily.com/69f250/camspecs.htm


Give me your ideas for a good 428 Short Block that would match my current intake, carb, cam, Ed AL or comparable CJ type heads.

I want enough torque to pull a big boat, but enough top end to impress the buddies.

By the way I don't speak "Camese". Does the spec card indiacte any special setup that I might not have done?

For those that don't know, I'm suffereing from a lack of tire spinning low-end grunt and an off-idle bog. I think it's in the carb. but need to rule out the cam setup. I'm also not sure what pistons were installed on the last rebuild, it may have pretty low compresson.

 

Here is the comparison. The dotted line is the cam put in at the .050 spec and the solid is the advertised spec. I figured in the following.

.030 over 390
Stock C8AE-H heads
750cfm 4bbl and dual plane intake.
Headers w/mufflers



The truth is probably somewhere in the middle. Kinda hard to say, that is why I don't particularly care for this cam. It lets off cylinder pressure early and moves the valve very slowly. This makes the engine sound meaner than a rattlesnake but it just doesn't have the bite.

 

I have to agree totally. The rpms are really up there for no more power. The torque looks good, but that power sux. Kind of peaky for no more than you get also. IMHO.

Scotty

 

It really looks like one of the older performance grinds. None of the other crower cams have this much difference between the advertised and .050 duration. PAW sells some SSI cams like this and they told my neighbor they were ground off of an older design.