What Pistons???

I'd like to start getting my shortblock together but I need pistons. Setup is:

D1VE block 0.030" over.
Stock crank.
M-6200-A75 rods.
DOVE-C heads ported and bigger valves.
Cam is undecided.
Torker II intake.
Holley HP 1000 carb.

I'd like to stick with the mid 10's in compression and I don't want to spend a ton. I was looking at the SpeedPro forged units but unsure which to use to get the CR I want.

#12331-030 Probe will work with your "press fit pin" also; just don't use the pin locks.

EDIT: that's what I get for going from memory again; I changed the part number in the text to reflect the correct number. It's just under 10.8/1 compression ratio.

It's hard to get mid 10's in compression with the existing forged offerings and stock D0VE-C's (figure about 75-77cc). I went with L2404F60 Speed Pro's and milled the heads .027" to get 69cc's. With a +.005" deck height, .045" gasket, I ended up around 10.3:1. They are heavy beasts though, about kilogram with pin.

What's the intended use?
Any plans to use N02? If so, how much?
Is this a street strip deal? Marine?

Intended use is track only...it's going in an 81 Mustang Coupe. Not planning to spray at this time.

Need it to run on 94 octane.

How come my motor is rated at 10.5:1 with the stock flat top pistons but aftermarket flat tops give a CR of much higher?????

Intended use is track only...it's going in an 81 Mustang Coupe. Not planning to spray at this time.

Need it to run on 94 octane.

How come my motor is rated at 10.5:1 with the stock flat top pistons but aftermarket flat tops give a CR of much higher?????

I would suggest a 2618 alloy forged piston for your application. Speed-Pro's are 4032 Alloy which is better for street or street/strip use.

Compression is effected by piston/deck hieght, size of the valve reliefs and several other variables.

I guess if I'm going to have to spend $500 for a decent set of pistons I might as well buy the 545 rotating assembly for $1,000.

I'll take ten of those 545 rotating assemblies with forged pistons if you can get them for $1,000.00 ... :roll:

I'll take ten of those 545 rotating assemblies with forged pistons if you can get them for $1,000.00 ... :roll:

Here ya go, pal. :lol:

http://cgi.ebay.com/ebaymotors/557-533-513-BBF-BB-FORD-Stroker-Kit-460-MUSTANG-TMD_W0QQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247 QQcategoryZ33620QQihZ007QQitemZ170190520329QQrdZ1Q QsspagenameZWD1V

Here to: http://www.adperformance.com/index.php?main_page=index&cPath=71_234&zenid=869a1ca027801635108bf0a714a01b46

That's a HAWK'S unbalanced crank which is sure to require $350.00 in mallory installation then flex and break during use, 6.700" I-beam rods with less than desireable machining and then you do get decent forged Probe pistons - flat tops, which are less expensive than a dish piston; (and it's still more than $1,000.00 plus shipping).
The SCAT crank won't break but, will still certainly require the mallory for balance.

I should have qualified that last statement to read "a QUALITY 557 rotating assembly with forged pistons"; something I could/would resell and be comfortable with it.
But, then again I didn't realize CARL or anybody was going to "knit pick" the statement as anything more than being outragous.

I guess there is a market for all sorts of suspect parts out there; and people do buy it with the expectation being that "it's just as good"...
Personally, I like to compare "apples to apples" not plums..

Don't ask a question, then bitch about the answers you might get - if the answer is something you don't wish to hear then just do whatever you nedd to do.

Find the cheapest .030" overbore piston you can find, (Carl should be able to help you there), and use it and take whatever compression ratio you get
. Now if you also WANT the compression to be in your ballpark then you can do whatever else it takes to get there; (cut the block, mill the heads, thinner or thicker head gaskets).
I'm sure all the other stuff will need to be almost free also in order to match what you want to get.

People seem to want GOLD for BRASS prices; ain't gonna happen.

SORRY I answered your question with a piston which fits EXACTLY what you asked...!
I will put your title in my memory and be sure not to answer anything by you and get in your way again.

Don't ask a question, then bitch about the answers you might get - if the answer is something you don't wish to hear

The only person I see bitching about anything in this thread is you RANDY....as usual. :roll:

I wasn't nitpicking you. I was just joking around.

As long as you're being snotty, maybe I should mention that I've built several strokers with RPM (hawks supplier) cranks and rods that didn't need malory metal and haven't flexed or failed.

Randy, dont forget to tell him to look for the Pro Comps, you know he will wont them too :lol:

Don't ask a question, then bitch about the answers you might get - if the answer is something you don't wish to hear then just do whatever you nedd to do.

Find the cheapest .030" overbore piston you can find, (Carl should be able to help you there), and use it and take whatever compression ratio you get
. Now if you also WANT the compression to be in your ballpark then you can do whatever else it takes to get there; (cut the block, mill the heads, thinner or thicker head gaskets).
I'm sure all the other stuff will need to be almost free also in order to match what you want to get.

People seem to want GOLD for BRASS prices; ain't gonna happen.

SORRY I answered your question with a piston which fits EXACTLY what you asked...!
I will put your title in my memory and be sure not to answer anything by you and get in your way again.

Easy!!! My statement about "might as well get the 545 rotating assembly" wasn't meant as a dig at your suggestion or anything. I was just thinking if I spend $500 on pistons, $125 to get my stock crank turned, and $150 on the rods I might as well spend the little more money and get the extra cubes. Sorry if it came across as bitching...it wasn't intended to.