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#1
11-19-2019, 09:03 PM
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Intake castings numbers
Were can I find all of the casting numbers for 68 intake manifolds?
I bought a set of 96's and trying to figure out what intake is correct. Thanks!! |
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#2
11-19-2019, 09:29 PM
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__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#3
11-19-2019, 10:50 PM
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Thanks!!
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#4
11-23-2019, 12:24 PM
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#234
Would probably want nothing earlier than a D date code if going for realism. Best wishes on your build. Keep us in the loop |
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#5
11-23-2019, 05:46 PM
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IIRC the #9794234 intake came with the Ram Air II engine in mid-May 1968.
Before this the #9790140 intake was used. |
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#6
11-23-2019, 09:59 PM
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Believe they started casting the parts in March (C) and April (D)
Somewhere on here before i think there was a witch hunt to try to determine the breaking point on the intakes (date-wise) , but i have forgotten the results now. Once it was switched to 234 - everything went to 234 across the board. approx Mid-May was when car assembly/production started Last edited by Baron Von Zeppelin; 11-23-2019 at 10:04 PM. |
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#7
11-23-2019, 10:04 PM
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Quite a few high mile "140" & "234" 4bbl intakes cracked up through the secondary divider. Have examined examples that the crack was so bad up from the heat crossover that an 8 penny nail would fit down in the crack...instant EGR! Buyer beware when dealing with sellers who don't clean their parts up.
__________________
Buzzards gotta eat... same as worms. |
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#8
11-25-2019, 11:46 PM
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I have a C088 9790140 and a C198 9794234, so the intake part number change-over was mid-March 1968.
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| The Following 3 Users Say Thank You to 68pongto For This Useful Post: | ||
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#9
11-26-2019, 09:27 AM
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Same manifold design for 350-428HO & 455 HO & RAI, IIs, IIIs.
Has anybody seen a Plenum or Runner difference in 4234s, 0140s, and the 1970 manifold ( because I havn't).
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12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
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#10
12-02-2019, 09:20 PM
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I have seen no differences between the early/late 68 intakes (same part number 4234 for 69 also, date dependent). I think I have approximately (30) 68 intakes. I have not found a cracked plenum in any of mine, but I have yet to clean ALL of them yet.
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'68 GTO 4-spd Hardtop (11) '68 GTO Convertible AT (1) '70 LeMans Sport Land of Lakes Muscle Car Classic Facebook Event Facebook Wall (Kurt Smith,Minneapolis) |
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#11
01-31-2021, 12:36 AM
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Intake castings numbers
Accidentally replied.
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#12
01-31-2021, 04:37 PM
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If I remember correctly, BOSS was looking for D248 as the date for the RAII engine's intake.
__________________
'68 GTO 4-spd Hardtop (11) '68 GTO Convertible AT (1) '70 LeMans Sport Land of Lakes Muscle Car Classic Facebook Event Facebook Wall (Kurt Smith,Minneapolis) |
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