First thing happy holidays everyone . The build sounded great until you mentioned David Nickens we used to race comp eliminator in the late 80s early 90s and he was one tough customer I can tell you now you will have one hell of a pair of motors thats a phenomenal crew you're dealing with the build went from great to world class without a doubt. Please share some pictures of the build and the boat that should be a hot set up when you're finished. Sincerely Laz Mesa

Appreciate the kind words. Yes is a great guy to deal with and knows how to make hp and live. It will be very interesting to see how they turn out because this is something he has been wanting to do for a good bit just needed that platform to do it. He feels I'm under rating the hp by time will tell.

Parts are starting to roll in cant wait to get these things on the pump.Got final camshaft specs and they are on there way. Well if it's not fast it will sound that way lol. Will be be posting some up date pics as soon as the big parts start rolling in.

what ring package are going to use?

Not really sure I will ask him and see. He mite want to keep that to him self but I do know they are total seal rings.

I see that Pfauff engines offer a 665 ci pump gas marine engine that makes 950 hp. So my question is why do guys think its so hard to make over 900 hp NA for a marine application.

I don' feel that 1.60 to 1.67 hp per cubic inch is asking for to much out of a engine that has the top end that will move the air.

i guess I’ll bite on this question. It has been my experience (I have had 2 Na high strung Motors built for me in the 580-600ci range by different builders whom have 50-60 years of engine machining and building between them) they are hard on components. It’s not that they don’t live and it’s not that you can’t build them, but they wear out quick especially if ran hard and they eat parts. If I got 30 hours of hard use before they started to go away I was happy. I have also broken a lot of parts while racing. Every time it’s used the lash is checked, every bolt is checked ect, oil is changed every race weekend along with plugs, are they used up? No but What I’m getting at is that I’m attentive to my boat and engine, it is dynoed after it comes out before it is rebuilt if it’s not broken and 30 hours of hard use it’s down 35/40 Hp, the lifters are going away and rockers have some slop in the trunions. I spin it in the 65-6700 (made peak power at 6800) range for 45 mins or so at a time whatever the race distance is. The cam I run has slightly more duration then the ones you talked about and probably slightly less lift. It’s on a standard base circle.

Yes I know you’re running a 60mm cam and 904 lifters Which will help for sure, but still a lot of lift and a lot of rpm is hard on parts. So I do not think that most builders are going to want to build something that they don’t feel is going to last atleast 100 hours. What is your rebuild interval going to be? Also I saw you’re at 11.5-11.7:1 compression you’re planning to be on straight pump gas with them? Again not saying it won’t work I just think you’re going to be on the edge and one bad fuel fill up could be ugly.


Just my thoughts, I’ve been called an idiot many times and I’m sure there is merit in it.

No we run mixed gas. I understand the hard on parts deal. But in our case we don't run our boat that hard and if we do spin up its only for short blast. I could see if a person had a heavy style v bottom or a big cat that these would definitely not be the power for them.

how many hours a year do you boat on average?