ima400

hi guy ive heard alot of good things about these heads has anyone yoused them or got them on there engine , and if so what do you think of them . there i another question , i dont understand this but ive heard that they dont work on methanol , ? any help would be great

cheers chris

curtisreed

Go over to 1320techtalk.com and ask this ?? there. Plenty of info on those heads from guys there. Chad is a good guy that runs the site and can help you with them.

Curtis

billhendren

We have been building SB2.2 engines for the last 10 or so years both for circle track and drag use. if you select the correct head for the application there great.the int runners are longer than most other heads so you cant compare port volume with say an 18 deg head without taking that into consideration.most of the heads we use running gas have an int port volume of 286-300 C.C.with alky and N20 heads @ 322 C.C. Any of the 286 and up heads from cup teams that aren't older than 3 years will flow in excess of 400 cfm. most have combustion chamber volumes of 33-36 C.C.
Anyone who thinks the heads don't work for alky needs to check with Marc Zimmer @ Minetech Communications in Perth Australia. Last year one of our SB2.2 alky engines won all but two races for the entire season,including home track champion,pro dirt champion,national champion,late model masters,fireball derby and southern nationals. he has the most winning car in the history of super late models in Australia It would be hard to convince him that SB2.2 heads don't work on alky.Bill

jmarksdragster

I just finished the dyno time with my 447 SB2.2, it made 801.4HP at 6600, 829.7 peak at 7500, 805.6 at 8000, and still 796.8 at 8200 where we quit. These heads flowed 398 @ .800 lift on intake. I am hoping Bill will know where to get some better ones for the 9.5 deck 460 we want to start on this summer...

ima400

thanx guys so what you are saying is the same thing i was thinking they do work using methanol . cheeres chris :lol:

ima400

WILL THESE HEADS WORK USING METHANOL

jmarksdragster

Yes. Because the efficiency of the head is so good it may not pick up a lot over gas, but you will have no issue on Alcohol.

ima400

thanx mate , im gona try & make around 8oohp out of a 414 sbc , wet sump engine , what do you recone ?

jmarksdragster

Mine is a little bigger on gas, 800 should be reasonable for expectations.