|
08-01-2003, 09:10 PM
|
#1 |
|
Registered User
Join Date: Aug 2002
Location: Farmers Branch, Tx
Posts: 1,009
|
engine assembly
I have been collecting the parts and now I am ready to assemble my motor. It is a 350 4 bolt with Comp cams XE262, Performer RPM, 600 cfm, headers, 2.02/1.6 stock heads, th400, 3.73 posi, and thats about it. I have the follwing question about oil pump and will surely have other questions over the next few days.
I bought a Melling high volume oil pump and it came with the following warning.  I think I need to change out the spring for the lower pressure but am not sure if I really need a high volume pump. Will this work ok with a stock oil pan without running dry?
__________________
http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club |
|
|
|
08-01-2003, 09:29 PM
|
#2 |
|
Registered User
Join Date: Apr 2000
Location: Chester County PA, USA
Posts: 1,228
|
I run a high volume/ high pressure oil pump on my 350 and i never had a oil pressure problem. It gets up to 80 psi when its cold. I never rev it up when its pushing that much pressure because i'm afraid of blowing out the oil filter. My oil filter relief valve is pluged.
I would run the high pressure spring. Randy 
__________________
72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania |
|
|
|
|
08-02-2003, 08:32 AM
|
#3 |
|
Registered User
Join Date: Aug 2002
Location: Farmers Branch, Tx
Posts: 1,009
|
thanks oldchev. anyone else have an opinion on this?
__________________
http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club |
|
|
|
|
08-02-2003, 08:56 AM
|
#4 |
|
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
|
I run a hy vol/hy press pump on the 383, with an old 6 Quart truck pan. I am also very careful not to rev the eng before it warms up.....it runs 80psi cold! After warmup, it settles down to 68-70 psi @ 3000 rpms, & pressure @ idle is about 42 psi. Chances are that you dont need that big pump on a street driven truck, & it will cost a little more power to run.....but shouldnt hurt anything. if you drive the truck in cold weather, I would be especially careful to let the eng warm up good before you drive. Good luck,crazyL
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
|
|
|
|
08-02-2003, 02:48 PM
|
#5 |
|
Registered User
Join Date: Aug 2002
Location: Farmers Branch, Tx
Posts: 1,009
|
Thanks all. I think I am going to use the lower pressure spring but stay with the high volume pump.
I have started putting it together today and here is another question. What should the screw in studs for the rocker arms be torqued to? I checked a couple and they were loose. These heads are casting number 462824 with 2.02 and 1.6 valves and I am using guide plates.
__________________
http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club |
|
|
|
|
08-02-2003, 04:49 PM
|
#6 |
|
Registered User
Join Date: Aug 2002
Location: Farmers Branch, Tx
Posts: 1,009
|
ttt
__________________
http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club |
|
|
|
|
08-02-2003, 05:38 PM
|
#7 |
|
Nothing fits but the oil
Join Date: Mar 2003
Location: Gaston, Indiana
Posts: 424
|
50 ft lbs. Locktite red if you have any. It's what is used on my race motors
__________________
Land of the free Because of the brave |
|
|
|
|
08-02-2003, 06:59 PM
|
#8 |
|
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
|
Hi volume but not high pressure.I have seen a smallblock that was very expensive to build and very well built.However the owner did not know to let the engine come to full temp before higher RPM operation.He washed out the bearings with too high of pressure .
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
|
|
|
|
08-02-2003, 11:07 PM
|
#9 |
|
Registered User
Join Date: Aug 2002
Location: Farmers Branch, Tx
Posts: 1,009
|
thanks everyone. I went with the regular spring in the pump and torqued the studs to 50 lbs.
__________________
http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club |
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
