Thread: 427 Build what do I need

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Originally Posted by calxen61

Ok 1. Not sure what you mean by "not a drop in" 2. Can I get more than 500 hp with this, then is worth the work. 3. Is this block even worth messing with. Is it worthless?
Thanks
Cal

well you can get 500 hp with a 454 or just about any 9.800 deck block and headers will fit and other things . i put tall deck blocks in both of my 66 GtO.s over the years.572s and 632 many 9.800 blocks from 396 to 548s i know what it takes to stick one in. know abit about bbc and getting 500hp out of a bone stock bottom end 427 tall deck will take some work on pump gas . i am building two 10.200blocks for some one that wants a street strip engine. this started life as a 427 tall deck it is now a 540 as the car its a Gm A body so he went threw the cost of getting custom headers so he has all out race only 598 tall deck i am building or may get on the street if things get to hot and the 540 can not get the job done . i am doing the same thing right now i have my donovan alumiun 632 10.5 cr engine just for the street .my race engine is a 598 14to1 roller engine so car is set up for a easy swap .thats is why i sold my 735 cid just to much work getting it to fit the old A body gm frame. just what i have now i had to do frame and front cross member work streering work to get a good oil pan to fit in the car. to swing the big crank and big header tubes. i done just about every thing you can do to a A body Gm car with both GtOs i had over 30 years