bob k. mando
Moderator
>>>Note: this info is copy / pasted from a post *that I made* several years ago on another forum. as such, some of the links are defunct and no longer work. i'm leaving this information in the post so that if you want to do further research or use the internet wayback machine or something you don't have to start from scratch.
Big Block Oil Mods
here is work that should be done any time you do a full rebuild on a 400 / 430 / 455 or if you are having oil pressure issues:
Jim Weise's block mods
http://www.trishieldperf.com/455_block_mods.htm
Timing Cover
http://www.buickperformance.com/OilingMods.htm
Block Passages
http://www.buickperformance.com/oilflow.htm
Optional
Neoprene Main Seals
Front: National Part # 450446 or Federal-Mogul #470543 or National Oil Seals #450446
Rear: Fel-Pro #BS30135 or National Oil Seals #5068
Checking for Oil Pump Wear; a definite must for pressure issues
http://www.buickperformance.com/oilpumpwear.htm
Plumb for a rear mounted Oil Pressure Gauge, much better than the front mounted stock sending unit
http://www.buickperformance.com/Oilmods.htm
Strengthen the Lifter Valley; some are very leery of using Ti putties/epoxies inside their rotating assemblies, use at your own risk
http://www.buickperformance.com/455LV.htm
350 / Small block work
here is what Automotive Performance & Machine does to prep a Buick 350 block:
http://www.automachperf.com/350
British v8 suggests v6 oil pickup, drilling the passages and has a nice article on fabbing up a racing pan:
http://www.britishv8.org/Articles/BOP-Rover-Oil-Pan-Options.htm
V6 specific oil mods
Merkel buildup:
http://www.gmhightechperformance.com/tech/0207gmhtp_buick_turbo_v6_engine_build_bottom_end/index.html
Big Block Oil Mods
here is work that should be done any time you do a full rebuild on a 400 / 430 / 455 or if you are having oil pressure issues:
Jim Weise's block mods
http://www.trishieldperf.com/455_block_mods.htm
Timing Cover
http://www.buickperformance.com/OilingMods.htm
Block Passages
http://www.buickperformance.com/oilflow.htm
Optional
Neoprene Main Seals
Front: National Part # 450446 or Federal-Mogul #470543 or National Oil Seals #450446
Rear: Fel-Pro #BS30135 or National Oil Seals #5068
Checking for Oil Pump Wear; a definite must for pressure issues
http://www.buickperformance.com/oilpumpwear.htm
Plumb for a rear mounted Oil Pressure Gauge, much better than the front mounted stock sending unit
http://www.buickperformance.com/Oilmods.htm
Strengthen the Lifter Valley; some are very leery of using Ti putties/epoxies inside their rotating assemblies, use at your own risk
http://www.buickperformance.com/455LV.htm
350 / Small block work
here is what Automotive Performance & Machine does to prep a Buick 350 block:
http://www.automachperf.com/350
British v8 suggests v6 oil pickup, drilling the passages and has a nice article on fabbing up a racing pan:
http://www.britishv8.org/Articles/BOP-Rover-Oil-Pan-Options.htm
V6 specific oil mods
Merkel buildup:
http://www.gmhightechperformance.com/tech/0207gmhtp_buick_turbo_v6_engine_build_bottom_end/index.html
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