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#1
12-29-2023, 10:01 PM
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Exhaust Manifold - Ram Air Questions 1969
Hello,
Happy holidays everyone! Thanks again everyone for helping me the last 2 decades learning about pontiacs! Super excited! I just got a numbers matching complete 428 with vin 0300687 XF – 1969 BLOCK ( GRAND PRIX 4 BBL AUTOMATIC – 370 HP - #9792968 date code K278) Doubt anyone is looking for that engine to match their big car? Really excited to take it apart and wanted to ask questions regarding the exhaust manifolds on this engine: How can I tell if these came original on this engine? Is there date codes on exhaust manifolds? Assume no. Are these manifolds the same (ID) as the 1969 GTO ram AIR manifolds? I heard these are out of stock for most people to buy right now?
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69 Gto, 390 posi gears,th400 w/jim hand converter/406 pontiac/#64 HEADS/ 10:1 compression/ 190 PSI with/ TRW 160 thou domes / hooker headers 1 7/8, PRW 1.5 rockers, 405 Crower Springs, Holley 750 vac with proform upgrade, Performer RPM on points / 284 H Single Pattern Crane |
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