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#1
05-08-2018, 09:40 PM
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Stock valley pan and roller lifters
Can a 73 455 stock valley pan be used with roller lifters or do I have to do something different. Would really like to use this piece even if I have to clearance it a bit on the bottom
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#2
05-08-2018, 10:04 PM
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77 Trans Am, 469 w/ported E-Heads via Kauffman, matched HSD intake, Butler Performance forged rotating assembly, Comp custom hyd roller, Q-jet, Art Carr 200 4R, 3.42s, 3 inch exhaust w/Doug's cutouts, D.U.I. Ignition. 7.40 in the 8th, 11.61@116.07 in the quarter...still tuning. |
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#3
05-09-2018, 12:07 AM
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Well that sucks LOL
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#4
05-09-2018, 09:40 AM
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Butler massaged my SD pan, and Dave at SD says it can be done
Note: When using a stock OEM valley pan and any type of Roller Lifter, be sure to clearance the underside of the valley pan with a hammer so it will clear the link bars on the roller lifters. 72 and prior valley pans only need to be clearanced on the Passenger side right below the PCV valve back to about the middle of the engine while 73 and up valley pans require clearancing on both sides. The best way to check for clearance is to have no heads on the shortblock, the lifters installed and then place the valley pan on the block, rotate the crank/cam to be sure there is adequate clearance (about .100"). Please contact us if you need more info |
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#5
05-09-2018, 10:26 AM
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My original 1970 valley pan worked with roller lifters and no issues.
.
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#6
05-09-2018, 10:46 AM
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I had the later one (1975) and checked for witness marks, ball peen hammered both sides until clear, works fine.
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65 GTO, 3800#, 474, KRE Dport 330 cfm, 11:1 on pump gas, XE 242 248 solid roller, T56 trans, 3.90 gear, 11.26 @ 124 mph |
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#7
05-09-2018, 03:18 PM
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My stock '72 pan works fine no mods. A cork gasket probably helps some as opposed to just using sealer...
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'78 Macho T/A DKM#95, 460cid, SRP pistons, KRE 310 D ports, 3" pypes, Hooker 1 3/4" headers, hydraulic roller, 10" Continental, 3.42 gears 11.5 @117.5mph 3900lbs  ([_|_] ##\|/##[_|_]) |
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#8
05-09-2018, 05:17 PM
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I tried using my factory pan with roller lifters and although I was able to clearance it enough to not contact the link bars, the work necessary to do that bent the pan enough to where it had severe sealing issues. Went to the Tomahawk pan and no more issues.
I should also point out that my factory pan did not clear without modification, even with a thick cork gasket.
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-Jason 1969 Pontiac Firebird |
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#9
05-09-2018, 05:28 PM
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I used a non-egr valley pan, I think a 1972 with my roller rockers with no issues.
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74 Formula Below motor destroyed last fall 469, 6X-4's, 72 Intake, Ramair Manifolds. 3 inch exhaust with x-pipe Custom Roller Cam, 1.52 Roller Rockers Quadrajet done by Cliff 3:42 gears 12.061 @ 110.74 12.092 @ 112.43 12.128 @ 111.71 New motor 461 stroker Edelbrock 87 cc dport heads Performer RPM Same Ram Air manifolds, and quadrajet Results will be posted after the track 
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#10
05-09-2018, 08:02 PM
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Thanks everyone for the replies I will try clearances mine and if it doesn’t work I will suck it up and buy the one from butler
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#11
05-09-2018, 10:21 PM
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The Tomahawk valley pan is awesome- seems like a no brainer and small price to pay vs an old pan that may be gunked up and needs a bfh to work.
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears (Traded) '69 LeMans Vert, 350, #47 heads: Non-running project |
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