Beefing up SB bottom end
#1090156
10/07/11 10:21 PM
10/07/11 10:21 PM
|
Joined: Feb 2009
Posts: 1,532 off the grid
340B5
OP
pro stock
|
OP
pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
|
I'm looking for suggestions on beefing up the bottom end of my SB. It will be 340 main, 3.580 stroke. Should be just under 500 hp.
Just ARP bolts? Stud girdle? Even thought about a partial fill, but I would like to maintain cooling in case I use it for a street motor.
Thoughts appreciated....thanks
Yeah, it's got a smallblock.
|
|
|
Re: Beefing up SB bottom end
[Re: 340B5]
#1090158
10/07/11 10:33 PM
10/07/11 10:33 PM
|
Joined: Dec 2009
Posts: 20,647 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
|
Good rod bolts and main studs never hurt but other than that I'd say you're fine.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: Beefing up SB bottom end
[Re: Guitar Jones]
#1090159
10/07/11 10:37 PM
10/07/11 10:37 PM
|
Joined: Dec 2006
Posts: 3,396 Pa
Hot 340
master
|
master
Joined: Dec 2006
Posts: 3,396
Pa
|
Quote:
Good rod bolts and main studs never hurt but other than that I'd say you're fine.
As far as rods go I would buy new GOOD ones, thats a given. Wouldnt bother with the stockers.
|
|
|
Re: Beefing up SB bottom end
[Re: Hot 340]
#1090160
10/07/11 10:54 PM
10/07/11 10:54 PM
|
Joined: Feb 2009
Posts: 1,532 off the grid
340B5
OP
pro stock
|
OP
pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
|
Thanks. I'm good on the rod bolts(ARP 2000)they will be streched properly. I think I'll just use some ARP main bolts, they really don't cost that much and the piece of mind is worth it.
Yeah, it's got a smallblock.
|
|
|
Re: Beefing up SB bottom end
[Re: dartman366]
#1090164
10/08/11 02:15 PM
10/08/11 02:15 PM
|
Joined: Feb 2009
Posts: 1,532 off the grid
340B5
OP
pro stock
|
OP
pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
|
If I would use full groove mains and the HN series rod bearings for extra clearance, would it sling too much oil up top for the rings to control? I've had good luck w/ the 1/2 groove mains.
Yeah, it's got a smallblock.
|
|
|
Re: Beefing up SB bottom end
[Re: 340B5]
#1090165
10/08/11 02:23 PM
10/08/11 02:23 PM
|
Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
|
master
Joined: Oct 2003
Posts: 7,506
Az
|
Wanna play it a little safer, you could consider Billet main caps and studs for the middle 3 - usually the first problem that shows up on a sm blk when making over 500 hp.
Fastest 300
|
|
|
Re: Beefing up SB bottom end
[Re: justinp61]
#1090167
10/08/11 03:31 PM
10/08/11 03:31 PM
|
Joined: Dec 2006
Posts: 3,396 Pa
Hot 340
master
|
master
Joined: Dec 2006
Posts: 3,396
Pa
|
Quote:
, that doesn't worry though, I know the volume is there.
How do you get more volume to the bearings without increasing the pressure or galley size?
|
|
|
Re: Beefing up SB bottom end
[Re: justinp61]
#1090168
10/08/11 03:36 PM
10/08/11 03:36 PM
|
Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
|
master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
|
I would go with main studs and align hone the mains because the caps can change with studs. As far as bearing I can't see any reason not to just run a standard P bearing set. Drill all the gallerys. If you are only turning 7,000 you may want a high volume depending on your clearances and oiling system. If you are turning higher and have the oil restricted save some power and run a standard pump with a port job. You shouldn't need any hard block. Nothing wrong with a short fill as it will dampen detonation.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
|
|
|
Re: Beefing up SB bottom end
[Re: Hot 340]
#1090169
10/08/11 03:47 PM
10/08/11 03:47 PM
|
Joined: Oct 2003
Posts: 11,684 W. Kentucky
justinp61
I Live Here
|
I Live Here
Joined: Oct 2003
Posts: 11,684
W. Kentucky
|
Quote:
Quote:
, that doesn't worry though, I know the volume is there.
How do you get more volume to the bearings without increasing the pressure or galley size?
I should've been more specific, the oil passages in the block have been enlarged. The pump is a HV.
|
|
|
Re: Beefing up SB bottom end
[Re: justinp61]
#1090170
10/08/11 03:48 PM
10/08/11 03:48 PM
|
Joined: Dec 2006
Posts: 3,396 Pa
Hot 340
master
|
master
Joined: Dec 2006
Posts: 3,396
Pa
|
Quote:
Quote:
Quote:
, that doesn't worry though, I know the volume is there.
How do you get more volume to the bearings without increasing the pressure or galley size?
I should've been more specific, the oil passages in the block have been enlarged. The pump is a HV.
Gotcha
|
|
|
Re: Beefing up SB bottom end
[Re: Leon441]
#1090173
10/08/11 11:03 PM
10/08/11 11:03 PM
|
Joined: Jan 2007
Posts: 3,695 nc
emarine01
master
|
master
Joined: Jan 2007
Posts: 3,695
nc
|
Quote:
I would go with main studs and align hone the mains because the caps can change with studs. As far as bearing I can't see any reason not to just run a standard P bearing set. Drill all the gallerys. If you are only turning 7,000 you may want a high volume depending on your clearances and oiling system. If you are turning higher and have the oil restricted save some power and run a standard pump with a port job. You shouldn't need any hard block. Nothing wrong with a short fill as it will dampen detonation.
Leon
Can you explain the short fill & dampen detonation thing....
|
|
|
|
|