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| Street/strip 400/430/455 Building your GS motor? Ask all questions relating to the late big block here. |
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#1
03-06-2007, 05:36 PM
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Oil Pump
Im currently building a 455 motor and I read somwhere that it is a bad idea to put a high volume oil pump on. Is this true or is this just true for blocks that don't have the oil mods, which should be done? Please let me know. I'd like some explanation as why it is a good or bad idea. Thanks.
Brian
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Brian Strazdus 1970 GS Stage 1 4 speed #'s matching 1977 Trans Am #'s matching 1971 Chevelle (sold) 
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#2
03-06-2007, 05:57 PM
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Re: Oil Pump
Quote:
This has been discussed many times on this BB. The HV/HP pump uses longer gears. It puts a bigger load on the cam gear and distributor gear. It puts alot of pressure on the front cam bearing timing chain and gears. It is completely unnecessary unless it is being used in a race engine with large clearances. The stock pump with proper internal clearances is capable of supplying all the oil needs of a properly built BBB. The end clearance of the pump must be checked and adjusted. Simply buying new gears and rebuilding the pump isn't enough. For more info, just put "oil pump" into the search feature of this board.
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Larry 1998 "Fully Optioned" SC3800 Riviera 70 GS 455 Stage1 KB 118, MT Headers, Dr. Gas X-pipe Gessler Level2 TA Aluminum Stage1SE's(2006) & TA Perf SP1 Intake (New for 2007) MSD Digital 6+, Ignitionman Distributor w/MSD trigger 1967 BT Switchpitch ST-400, Gear Vendors OD with TSP 3200/1800 converter John Osborne Q-jet 3.73's (2007) 12.119@ 111.98 MPH (1.718 60') MT ET Street Drag Radials Larrymta@verizon.net, GSCA #291 BCA #37548, BPG # 1063 N.E. GS/GN Club Assistant Director
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#3
03-06-2007, 10:11 PM
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Re: Oil Pump
basiclly a cheap fix for old worn out engines,
not needed if rebuild is done right/oil mods to block
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Andy bridgeview,il 65 special v6 daily driver-this needs to go faster 82 gn clone 455 12.50's on pump, soon trishield 464 84 gn 72 skylark convert#2 ,N-25 for sale
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#4
03-08-2007, 05:55 PM
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Re: Oil Pump
So basically the clearances must be correct and it should be a freshened motor to run a high volume fuel pump?
Brian
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Brian Strazdus 1970 GS Stage 1 4 speed #'s matching 1977 Trans Am #'s matching 1971 Chevelle (sold)
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#5
03-08-2007, 05:59 PM
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Re: Oil Pump
Quote:
__________________
Larry 1998 "Fully Optioned" SC3800 Riviera 70 GS 455 Stage1 KB 118, MT Headers, Dr. Gas X-pipe Gessler Level2 TA Aluminum Stage1SE's(2006) & TA Perf SP1 Intake (New for 2007) MSD Digital 6+, Ignitionman Distributor w/MSD trigger 1967 BT Switchpitch ST-400, Gear Vendors OD with TSP 3200/1800 converter John Osborne Q-jet 3.73's (2007) 12.119@ 111.98 MPH (1.718 60') MT ET Street Drag Radials Larrymta@verizon.net, GSCA #291 BCA #37548, BPG # 1063 N.E. GS/GN Club Assistant Director
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