Originally Posted by bjuice
Originally Posted by hammertime
Originally Posted by bjuice
Originally Posted by obsessedtruck
I just finished chassis dynoieng my truck today. I ened up with 740 at the wheel. With my drive line that comes to 1070hp at the crank out of my little 522. Peak hp @ 7200rpm. Thats with RFDs 1803 Oval port Brodix big dukes. Im not done yet either theres more in it yet.
thats some IMPRESSIVELY HUGE #'S for a 522ci and this is considered a small engine this day and time. :shock:
I hope the Guy is reading this that told me 1150 hp for a 565ci is a little agreesive.....i will let your post and 522ci #'s speak for this issue.
Congrats i am Very impressed.

Bjuice whoever told ya that is wrong for sure I know of a few 565 Big Duke motors without a ton of effort making 1150.
yeah i know Hammer Thats what i tried to get across to just to be told it was far fetched.. :roll:
PAR'S 565CI bracket engines are puttin out 1050hp with the convential head bb3 oval port head
read this thread and you will remember as soon as you see it..
http://forums.racingjunk.com/viewtopic.php?t=8093
ah guess I didnt see the wise "par" crack there. One thing to remember them dukes IMO are a lot better setup then the old big chief stuff. One of the 565 I spoke up is a buddy of mine he also has a 584ci big chief motor that is .25 slower then the 565 big duke and made 115hp less on the dyno. They were less then impressed with the 584 compared to the 565 with duke heads. No doubt 1120-1130 could be had with the proper builder with the right 18 degree setup. Anymore 18 degree is old school 18 degree guys are going either to 11/12/14 degree and the 16 degree has really came into the picture. A lot have switched back to the conv heads because todays heads bb3x's can keep up with a lot of the 18 degree setups without the issues the 18 degree stuff is known for (lifters).