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#1 |
"THE GREEN GOBLIN"
Join Date: Mar 2008
Location: Fremont Ca.
Posts: 1,025
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The numbers on the block are #14015445 last number is a 5 or a 6 is it a 2 bolt or a 4 bolt how can I tell?
The heads seem alittle wierd to me two different numbers is that how it is supose to be? Passanger side is Markings on it GM3T E24\76 #346236 Driver side is Markings on it 346\ CFO or CFD #14081045 Oh and by the anyone know if my intakemanafold is a good one it is a Weiand #7544?
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![]() "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi ![]() Drive it like you stole it! ![]() Petey-pablo@sbcglobal.net |
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#2 |
BlahBlahBlah
Join Date: Feb 2002
Location: Wa.
Posts: 19,874
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Re: Help Decode my motor & Heads!
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#3 |
"THE GREEN GOBLIN"
Join Date: Mar 2008
Location: Fremont Ca.
Posts: 1,025
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Re: Help Decode my motor & Heads!
The heads Have two different numbers is that how it is supose to be? I checked my numbers with http://www.mortec.com
Passanger side is Markings on it GM3T E24\76 #346236 This is what I came up with... Mortec Site read the following= 75-87...OVAL...OPEN...454,120cc Chamber,225/116cc Ports Driver side is Markings on it 346\ CFO or CFD #14081045 And Mortec Site read the following= 78-87...OVAL...OPEN...454 Are these any good I mean the motor runs fine could they cause the motor damage in the long run because they are different in Numbers?
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![]() "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi ![]() Drive it like you stole it! ![]() Petey-pablo@sbcglobal.net |
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#4 |
Senior Member
Join Date: Sep 2004
Location: Terrell, TX
Posts: 1,967
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Re: Help Decode my motor & Heads!
Only way to tell is to open it up and count the bolts in the main caps...seems they never coded 2 or 4 bolts from the outside.
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Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps. |
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