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Is this an engine builder's Trick? #1192325 03/06/12 03:01 PM 03/06/12 03:01 PM
Joined: Feb 2004 Posts: 964 Nanaimo, B.C. GwaiiEagle OP Mannix
GwaiiEagle OP Mannix Joined: Feb 2004 Posts: 964 Nanaimo, B.C.	My other 400 and 383 blocks don't have these drilled out. Is it just an engine builder's trick?

Re: Is this an engine builder's Trick? [Re: GwaiiEagle] #1192326 03/06/12 03:13 PM 03/06/12 03:13 PM
Joined: Aug 2003 Posts: 43,219 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,219 Bend,OR USA	Quote: My other 400 and 383 blocks don't have these drilled out. Is it just an engine builder's trick? It use to be, I don't do it any more It allows most of the oil caught in each depression to drain back faster instead of storing it in the valley when shut off Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Is this an engine builder's Trick? [Re: Cab_Burge] #1192327 03/06/12 03:47 PM 03/06/12 03:47 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	We used to drill the valley for oil drain back,but with the advent of better oil systems we find it unnecessary,heck we used to polish the lifter valley before we knew better. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: Is this an engine builder's Trick? [Re: B G Racing] #1192328 03/06/12 03:49 PM 03/06/12 03:49 PM
Joined: Jan 2003 Posts: 1,938 Sonora CA Mopar_Rich top fuel
Mopar_Rich top fuel Joined: Jan 2003 Posts: 1,938 Sonora CA	And paint the lifter valley with high gloss slick paint. Anything to get that oil back in the pan.

Re: Is this an engine builder's Trick? [Re: B G Racing] #1192329 03/06/12 03:50 PM 03/06/12 03:50 PM
Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY B bobs66440 top fuel
bobs66440 top fuel B Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY	Quote: We used to drill the valley for oil drain back,but with the advent of better oil systems we find it unnecessary,heck we used to polish the lifter valley before we knew better. Wow! That must have been a project!

Re: Is this an engine builder's Trick? [Re: bobs66440] #1192330 03/06/12 03:58 PM 03/06/12 03:58 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	As we get older,we "sometimes" get wiser sometimes [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: Is this an engine builder's Trick? [Re: B G Racing] #1192331 03/06/12 06:41 PM 03/06/12 06:41 PM
Joined: Dec 2009 Posts: 20,640 in a cattle trailer down by th... G Guitar Jones Paddle faster! I hear banjo music!
Guitar Jones Paddle faster! I hear banjo music! G Joined: Dec 2009 Posts: 20,640 in a cattle trailer down by th...	I looked at those mods about 3 decades ago and thought to myself, "that's a lot of work for nothing." So I've never done them. I do remove the casting flash though, just in case something might break off. "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: Is this an engine builder's Trick? [Re: Guitar Jones] #1192332 03/06/12 07:12 PM 03/06/12 07:12 PM
Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O 70Cuda383 Too Many Posts
70Cuda383 Too Many Posts Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O	Never thought to drill that area out. once the oil hits that and fills it up...I always just consider it to be "lost oil" it stays there forever. as fresh oil drains from the heads, it keeps the puddles "fresh" so after the initial fire up/cam break in and oil change, you never know the difference. Photobucket sucks

Re: Is this an engine builder's Trick? [Re: 70Cuda383] #1192333 03/06/12 07:17 PM 03/06/12 07:17 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	I still drill those holes in a wet sump system.. in a dry sump you have a pick up up there

Re: Is this an engine builder's Trick? [Re: MR_P_BODY] #1192334 03/06/12 08:16 PM 03/06/12 08:16 PM
Joined: Jan 2003 Posts: 6,591 Canton, Ohio S Sport440 master
Sport440 master S Joined: Jan 2003 Posts: 6,591 Canton, Ohio	My new builds block is drilled like that too. With the cam in, it appears some of the reasoning besides drain back, is to drip oil on the cams lobes. Kind of like a poormans lifter EDM. Mines drilled from front to back.

Re: Is this an engine builder's Trick? [Re: MR_P_BODY] #1192335 03/06/12 09:00 PM 03/06/12 09:00 PM
Joined: Nov 2009 Posts: 3,410 Belpre,Ohio C CHAPPER master
CHAPPER master C Joined: Nov 2009 Posts: 3,410 Belpre,Ohio	Quote: I still drill those holes in a wet sump system.. in a dry sump you have a pick up up there If you like drag racing, support your local track.

Re: Is this an engine builder's Trick? [Re: GwaiiEagle] #1192336 03/06/12 09:07 PM 03/06/12 09:07 PM
Joined: Jan 2003 Posts: 10,010 Frostbitefalls MN (Rocky&Bullw... gregsdart I Live Here
gregsdart I Live Here Joined: Jan 2003 Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...	Not drilling them provides a place for some of the trash from my broken rocker arm needle bearings to collect! Better than running the stuff through the oil pump! 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: Is this an engine builder's Trick? [Re: gregsdart] #1192337 03/06/12 09:11 PM 03/06/12 09:11 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Not drilling them provides a place for some of the trash from my broken rocker arm needle bearings to collect! Better than running the stuff through the oil pump! I still glue screen over ALL the openings on the top

Re: Is this an engine builder's Trick? [Re: CHAPPER] #1192338 03/06/12 09:12 PM 03/06/12 09:12 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Quote: I still drill those holes in a wet sump system.. in a dry sump you have a pick up up there What dont you understand

Re: Is this an engine builder's Trick? [Re: MR_P_BODY] #1192339 03/06/12 09:33 PM 03/06/12 09:33 PM
Joined: Nov 2009 Posts: 3,410 Belpre,Ohio C CHAPPER master
CHAPPER master C Joined: Nov 2009 Posts: 3,410 Belpre,Ohio	Quote: Quote: Quote: I still drill those holes in a wet sump system.. in a dry sump you have a pick up up there What dont you understand Where do you locate the pick-up/suction, with a dry sump, that gets those little areas of oil between the lifters? If you like drag racing, support your local track.

Re: Is this an engine builder's Trick? [Re: Sport440] #1192340 03/06/12 09:36 PM 03/06/12 09:36 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer master
Bob_Coomer master Joined: Nov 2003 Posts: 6,293 Rock Springs	Quote: My new builds block is drilled like that too. With the cam in, it appears some of the reasoning besides drain back, is to drip oil on the cams lobes. Kind of like a poormans lifter EDM. Mines drilled from front to back. It would do that any how after the puddle fills, it has to spill over somewhere.. I personally think its worth the time to do the extra little stuff. Doesnt really cost much extra. [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: Is this an engine builder's Trick? [Re: Bob_Coomer] #1192341 03/06/12 10:21 PM 03/06/12 10:21 PM
Joined: Jan 2003 Posts: 6,591 Canton, Ohio S Sport440 master
Sport440 master S Joined: Jan 2003 Posts: 6,591 Canton, Ohio	Sure it would spill over anyways, randomly. But the hole sure would help direct the oil better. I think its worth the time too I liked the idea/concept after looking at it.

Re: Is this an engine builder's Trick? [Re: CHAPPER] #1192342 03/06/12 11:04 PM 03/06/12 11:04 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Where do you locate the pick-up/suction, with a dry sump, that gets those little areas of oil between the lifters? Well on a dry sump block all of the valley is sealed off so yes you need a pick up up there but you also carry ALOT more oil in the tank so that bit that is lost up there doesnt matter but on a wet sump you run less oil so why let that bit lay up there doing nothing so thats why I still drill the holes

Re: Is this an engine builder's Trick? [Re: MR_P_BODY] #1192343 03/08/12 02:09 AM 03/08/12 02:09 AM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt Good Ol Randy B!
Labratt Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	Makes perfect sense to me! I agree 100% with Mike's(Sport440) assessment of the drilled hole acting like an EDM solid lifter! The oil dripping through the drilled holes is aimed more directly onto the cam lobes...instead of just a random over-flow!

Re: Is this an engine builder's Trick? [Re: B G Racing] #1192344 03/08/12 12:41 PM 03/08/12 12:41 PM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	Quote: we used to polish the lifter valley before we knew better. I heard that's not the only thing you were polishing home of the Sox and Martin Hemi Duster

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