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Posted by nycreep50 (Member # 9735) on :
 
Looking for alittle guidness have a306 short block with aftermarket internals going to turbo (yes I know the stock block won't hold to much hp b4 cracking etc)
my questions are should I spend extra on arp rod bolts, dss main gridle, etc. I Have head studs already,also a good headgasket and what thickness??????
this is were I went for help after much time researching on the Internet but I would like actually help from 5.0 fans that's been down this road
thanks
 
Posted by JohnB (Member # 969) on :
 
The main question is "how big are you going with this?"


My advice...a cheap set of forged rods, flattop 9-1 forged pistons, and a stock crank. Balance the rotating assembly, have someone build it that KNOWS what they are doing (read: not your corner NAPA auto) and leave the girdles for the girls. Stud the heads and mains, run a 9333 FelPro HG and make sure it has plenty of fuel.
 
Posted by nycreep50 (Member # 9735) on :
 
Sounds good, thanks for ur input
 
Posted by trickflow211 (Member # 8503) on :
 
John Wats wrong w a girdle ?
 
Posted by JohnB (Member # 969) on :
 
quote:
Originally posted by trickflow211:
John Wats wrong w a girdle ?
1. Nearly no one installs them correctly, leading to it being the main cause of bearing failure.
2. Break a crank, sh!t is going everywhere anyway...a girdle won't save it.
3. Break a block...same thing.
4. Break a rod...you just destroyed your girdle.
5. If you are making that much power, it'd be a 4 bolt main..and not a production block.
6. IMO, waste of money. A good line hone with a ARP main stud set is plenty.

Many people swear by them, and that's fine. I'm not one of those people. [Smile]
 
Posted by migs66/92 (Member # 4811) on :
 
listen to johnB he knows his stuff
 
Posted by ISP89LX (Member # 8949) on :
 
quote:
Originally posted by migs66/92:
listen to johnB he knows his stuff
+1 the mann knows his sh!t, just gave me lots of good advice on a 351 build.
 
Posted by trickflow211 (Member # 8503) on :
 
Kk thanks ... cus I'm building a 331 stroker n am worried about splitting the block due to too much HP ..wat else will strengthen the bottom end ? I was going to stud it already...
 
Posted by essasin (Member # 4741) on :
 
Besides what was said I don't think there is anything else. If you want to go to the extreme, I've seen build threads where they cemented their blocks. I am not sure how much it helps but racirx went 9s on his stock block that was cemented and I've seen a few other fast combos on corral with cemented production blocks.
 
Posted by wilit (Member # 3367) on :
 
The block splits in the lifter valley, so there's not a whole lot you can do to strengthen it. There's a kit that runs a couple of braces in the valley, but I haven't met anyone who runs them. Here's the kit. http://www.nmradigital.com/forums/showthread.php?t=47626
 
Posted by 707notchback jaejae (Member # 7958) on :
 
paging rasirx
 
Posted by nycreep50 (Member # 9735) on :
 
I am also wondering the samethings. I have a 306 short block, b&g turbo piping and going to run 1 turbo. but have two turbo to chose from a 76 trim and a 60 trim. I know it will split the block but I don't want to do it after hitting peak boost a couple of times. So as much as I can do to prevent that I will or best yet low boost?
 
Posted by nycreep50 (Member # 9735) on :
 
I am also wondering the samethings. I have a 306 short block, b&g turbo piping and going to run 1 turbo. but have two turbo to chose from a 76 trim and a 60 trim. I know it will split the block but I don't want to do it after hitting peak boost a couple of times. So as much as I can do to prevent that I will or best yet low boost?
 
Posted by trickflow211 (Member # 8503) on :
 
that girdle that runs in the valley looks like it would work pretty good! anyone heard anything about them ? or have any input?
 
Posted by racsirx (Member # 1710) on :
 
The girdles are a waste of money, yes I went 9s with a cemented stock block, 28oz, 306 with Eagle rods and SRP pistons and a T70 turbo. I also use the Felpro PT9333-1 headgaskets. Anything over 450HP, there is a great chance a stock block will break, I made around 650HP but I only drove my setup at the track and only ran straight C16 race gas and I knew it could break at anytime. Also I would only use a 28oz or 0oz setup if you planning on making a race motor.
 




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