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#1
08-17-2004, 10:32 PM
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Is there such a thing as 69 YD block 400 ci. If there is a YD block can some one out there tell what it is and what car did it come from.
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#2
08-17-2004, 10:32 PM
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Is there such a thing as 69 YD block 400 ci. If there is a YD block can some one out there tell what it is and what car did it come from.
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#3
08-17-2004, 11:00 PM
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The YD code 400 engines came in '67, '69 & '70 big Pontiacs (Catalina, Bonneville, etc). They were rated at 290 HP and came with small-valve (1.96/1.66) heads and 2-barrel carbs.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/3.08 2002 WS6 Convertible LS1/4L60E/3.23 1966 VW Type 2 Single Cab Pickup 140hp 2276 1956 VW Type 2 Panel Van 36hp 1200 1957 VW Type 1 Beetle 180hp 2276 |
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#4
08-17-2004, 11:27 PM
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Thanks b-man, Can one mate 670 heads with a YD block and what would the outcome be
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#5
08-18-2004, 02:53 AM
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B-man is right on those applications as I used to have a YD block years ago in my GTO. Yes you can use 670 heads with no problem or any of the other high performance D-ports.
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1971 GTO,72 400, stock bottom end, 670 heads, Lunati BMII cam, headers, iron intake Q-jet, four speed. Best 60 ft 1.806in 2004. Best 1/8th mile e.t. 8.46 with 3.55 open rear 85 Grand Prix, 70 400, casting 62 heads stock rebuild, Turbo 350 trans 78 800 cfm Q-jet modified as per Cliff Ruggles book. 87 F350 6.9 4 speed dually A poor man has poor ways. |
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#6
03-11-2005, 11:25 AM
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hey B-Man,
What would be the outcome of swapping an intake and 4bbl carb from a '74 engine into one of these YD blocks, in terms of performance? Would that be a good combo to work with? Many questions on my mind because I can get my hands on one that looks untouched and original. Thanks. |
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