Web31. jul 2006. · 350 Olds Head valve uprade 2.00"/1.62" intake/exhaust valves for thee 350 Olds small blocks. Dick Miller claims that #5 heads flow the best bone stock and untouched. To distinguish the hardened valve seat heads from the earlier, non-hardened seat heads, Olds cast a small capital-letter "A" along with the larger casting number/letter. Web* Some later A heads have casting # 383821 B and exhaust port bumps the same as all the later heads produced after 1965. ** DS = "Drill Spot". I rib. 2 ribs and 3 ribs help identify the cylinder heads during assembly. The ribs are located on the front side of the head in the area where the three 3/8 tapped holes for engine accessories
Oldsmobile 403 Engine - Car Craft Magazine - MotorTrend
WebOldsmobile Olds 98 6.6 LTR V/8 Cyl OHV V/8. Fits 78-79. Casting No: 4717. Additional Applications: Buick – Electra 1978 to 1979 Cadillac – BROUGHM 1978 to 1979 … WebGet the best deals on Oldsmobile Car & Truck Cylinder Heads & Parts when you shop the largest online selection at eBay.com. Free shipping on many items Browse your favorite brands affordable prices. ... Oldsmobile v8 cylinder head pair set 3A-554-GM3-PMD-716 crack checked. $249.99. $138.93 shipping. THE ULTIMATE 69 CC 403 TOP … hydrapower portland
HOW TO INDENTIFY A BIG BLOCK OLDS FROM A SMALL BLOCK OLDS
Web23. sep 2003. · If they're flat tops you may indeed have a high comp engine. However, the Ga heads were for 1972 W30 engines ( Ga '72 455 80 409100 W-30's, manual 442's used big valves see Olds FAQ site) and all comp ratios were down to 8.5:1 by then. No question that HP is made in the cylinder heads, but I guess it all depends on what you want to do. WebOldsmobile bare core cylinder head 260, 307 and 350. $150.00. Casting # available 2a, 3a, #5a, #7a, #7A, #10, #8 each. “ This is a used bare small block Oldsmobile head, ready for machining. Bare means there are no parts in them, and you cannot install them on a car. ”. Web06. nov 2011. · 1981 - 1985 307. Used on the regular hydralic lifters engines. This head is preferred for 307 performance use because there are port matching problems between aftermarket intakes and exhaust headers with the 7A heads. 5a heads are rumored to flow slightly better. The 5a ports are larger than the 7A's, so this makes sense. mass add contacts to iphone