I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise
10.700 deck
3.75 crank
7.100 rod
14.5:1 .030 dome piston
Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh
Heads flow 375 at .750 lift
.705 lift cam 282/292 110 centerline
PAC 1225 springs
1.6 rockers
Eddy super victor intake
1050 dominator
Single line external oil pickup
I really think it should. This 451 consistently made 750+ hp on unleaded pump gas.
750+ horsepower 451 The motor now sits in a storage room. Lol. Another dyno queen story.
Pittsburgh-guy, You have pretty decent resume. I'm no fancy racer and I now live on Social Security. I'm just a backyard engine mechanic who can't even afford to go racing. But in 2009 I was pretty proud of what my son and I did in an unheated two car garage and a master bedroom turned into a clean room for assembly. To this day I'm still proud of it.
In 2004 my son brought me the Dec.1982 Popular Hot Rodding magazine that had an article on a 440 that his grandpa built and said, "Hey, Pop did this back in '82, can't we do something like it?" I told him we needed cylinder heads. He got out his grandpa's old flow bench and began destroying cylinder heads, had a pallet of ruined ones when he brought me a set of iron 452's. They were good enough for us to make 621 HP and 588 LB-FT on pump gas with our first 451 engine. It went into the '71 Road Runner and drove around on the street for awhile. Eventually it made 554 RWHP with 906 iron heads using the same shortblock we used in all the dyno contests. When doing some tests for a contest, where we built a 500 wedge, the 451 made 694 flywheel horsepower @ 9.7:1 compression with 906 iron heads.
We entered the 2009 dyno contest held at Comp Cams because we were head hunting Indy Cylinder Heads. The year before the spec heads were Indy heads (SR I believe) and they let Indy Cylinder Heads enter the contest with their own heads. Guess who won? I thought that was kinda corny and so we entered the next year hoping Indy was going to be there again. No such luck. I guess they weren't interested to see how much power they could make with the spec'd Edelbrock RPM head for that year. Our "queen" made 135 HP more than the next closest 451 and only 1 HP less that the highest horsepower engine in the contest, a 500ci engine.
In it's lifetime so far the "dyno queen" probably made some 200+ pulls from the first to the last with approximately 50 pulls over 700 HP. It now rests in the 1/2 ton 4x4 shop truck with 452 iron heads and de-tuned to 580 horsepower. "Dyno Queen"? I'm proud of our Dyno King!
