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03-09-2004, 03:00 PM
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#1 |
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Registered User
 Join Date: Mar 2003
Location: Asheville, N.C
Posts: 952
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Hi Perf. code on engine block?
I have a '72 GMC and on the origional 402BB in my truck it says Hi Perf. on the engine block. What does this mean? Thanks . Dave
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03-09-2004, 03:02 PM
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#2 |
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Keepin an eye out
Join Date: Feb 2003
Location: So.Cal
Posts: 3,920
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Pretty sure they all say that. I had a 402 and it did.
__________________
1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351 |
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03-09-2004, 04:14 PM
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#3 |
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now thats a true COON DOG
Join Date: Nov 2000
Location: Franconia, NH
Posts: 1,977
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Yep, I agree. Mine says it also....... I don't think it is or means anything special.
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current project 67  402BB stout th350 3.08's with a locker. Plan on tubs 18.5's out back! (thanks Burnsman!)71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's ( was crushed by a tree, bed sold, motor pulled)  was my first truck!... oh well...72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE work in progress, soon to have 250-I6 with a 3-speed on the tree 4.11's and posi ( currently sitting in back yard tarped awaiting time, $$$, and lots of love!) 67 1 TON- work truck 396 sm 420 4-speed, flat bed 4.57 gears "big red" (my first landscape truck, very rusty and crusty! but still gets the job done when needed!) |
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03-09-2004, 04:27 PM
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#4 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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It means it is a normal block and not a tall deck big truck block (like a 366 or 427 truck engine)
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I'm on the Instagram- @Gearhead_Kevin |
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