308 or 306 ?

[MattTheBat83]

i was to get an engine of this size would it be ok to run some bolt ons and possibly 5 lbs from a sc?

 

[Daggar]

There's perty much zero difference as far as that goes.

 

[Strype]

Leave as much sidewall as possible for cooling purposes IMO

 

[jjd975]

Stay with a 306. No need to remove more material than needed from a weak block.

 

[1SLO306]

Stay with a 306. No need to remove more material than needed from a weak block.

so true!!!

 

[soontobefastfox]

why not just keep it a 302 and get better pistons and save some money for the machine work, unless you already have the block machined.

 

[MattTheBat83]

i was thinking of getting something like this : http://cgi.ebay.com/ebaymotors/Ford...ryZ33615QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[Yobi1Kanobi]

well if you have wear on the block your going to need maching in order to get a proper seal. But I wouldnt go any more than 30 over giving you a 306. IMO it weaken the cylinder walls and cooling isnt as good either. There isnt much if any HP advantage between 302 and 308.

 

[RBRANDX]

If you ever plan on running any type of power adder, go ahead and upgrade to forged pistons.

 

[5spd GT]

I wouldn't take any more off the walls than .030 (306) if your planning on boost. Do the .030 if you have a used block that hasn't been bored/line honed...do the 302 if you have a new block. Stock piston size...

You will be plenty fine, just get a good tune...

Not much difference in hp between a 302, 306, or 308...maybe just a few hp...

Good Luck

 

[MattTheBat83]

any more opinions?

 

[STANGateURlilSS]

you can bore a stock block .060 but then the walls get thin.. and they tend to run hot.. which with boost is a no no.. as stated before the difference between a 306 and 302 hp is marginal.. but if you have to bore the block do not go more then about .030.. hell if its a new block leave it alone.. just have it honed to make sure u get a nice ring seal.. as for 5 lbs of boost.. yes a stock block can handle 5lbs of boost.. just make sure it doesn't run lean.. so just make sure u get a good tune..

 

[MattTheBat83]

im thinking of buying one of these engines but im not sure what add ons i should get
http://cgi.ebay.com/ebaymotors/Ford...cmdZViewItemQQcategoryZ33615QQitemZ8054896621 Any Aftermarket Camshaft - $180
Forged Pistons - $350
TFS Main Stud Girdle w/ ARP Main Bolts - $200
ARP high-performance connecting rod bolts - $85 [/B]
i was thinking i should get the forged pistions, the cam, and the connecting rod bolts, but should i get the main stud girdle?(not sure what it is)

 

[5spd GT]

The main stud girdle bolts onto your crank caps and keeps everything tied together in case your block decides to crack...just keeps it less "messy"...

I wouldn't waste you money on it personally...good luck!

 

[MattTheBat83]

thanks but i should probably get the cam and forged pistions?

 

[1SLO306]

ummmmmmmmm, of course