hammertime

I've purchased all mine balanced, my motor guys been happy with that part from them. To answer your compression question it depends what you want to do with it, race only no doubt 13:1 would be what I get there will be a good sizeable increase in HP over the 10:1 stuff.

bbb555

Been trying to order it and they talked me out of it twice because they say my block is weak and they want to sell me a new one.. I have a 502 gen six?

tcarda

I don't know if you are driving this on the street or not, but you can always fill the block with filler. My 540 is 877 hp and my block is Gen IV Bowtie block. I run my engine 8000-8100 rpm. I don't know if my Bowtie block is any different from your and maybe someone can help out here.

hammertime

I may be wrong here but I bieleve the bowtie block is the one you would want and they could be correct.
Again I may be wrong I dont deal with gm blocks.

edvancedengines

10;5 if it is mostly street. 13 and over if it is mostly for racing. Forget the power difference. DEcide what you want to use it for.

the 502 production block is factory rated for 750 hp max. I know of a few guys doing over 800 with them. It is the weakest factroy GM BB Block ever built. Will still make a great street engine though.

I prefer the ARP 2000 bolt upgrqade to the L-19. Go to ARP site and check out the different alloys and positives and negatives of each and make up your own mind.

Shafiriff does a good balance job.

I suggest to inquire about their pump gas cams for your type of engine if you do this for street.

Ed

TheRabbit

I ran an eagle crank, gm 502 block, grp aluminum rods, JE 13.8 -1 pistons, comp roller, world prod aluminum heads, sniper intake on a 548. It made 868 @ 7400 and no problems. It was a bad little motor and wish i hadn't sold it. But a dart block would be better for sure.

bbb555

My plan of action has already begun.. Ordered the stroker kit with the L-19 bolt upgrade. Going to fill the block up to the freeze-out plugs. A set of AFR 345's and keep my weenie cam in it for now.Will see how she does. Almost forgot compression will be around 12.8. Thanks for all the in-put.Bill

Notalent

I personally would go with Scat. We have dealt with Eagle alot and we have returned to much. Scat has a better quality control/inspection dept. Just my opinion though. Scat has been doing very good for us, other than the time to get an assembly....mainly the 408 stroker kits.

bbb555

Took the 502/now 540 out sat and it did ok! It ran 10.teens with a small cam....I used the small cam I already had in the 502...I should of went bigger...I'll change it out this winter.. The cam is in the 660 lift range..

denn468

i have a scott shaffiroff 540 shortblock dart big m block wiesco piston eagle rods and crank l19 bolts 14 to1 motor box stock dart 325 pro 1s 2.300 1.880 pro system carb runs 970 at 136 at 3700lbs 60s on the back tires around 800hp 740ft lbs tq no tuning yet either i have nothing but good to say about ssre motors everyone ive delt with there have been good peoples