flatchat

Anyone using the mast medium bore l92/ls3 heads?

quickslvr

I am using their large bore ls7 cnc 'd heads on my 440". The heads flow 390 cfm at max lift. Cant wait for the dyno.

Cary@Perf-Induction

iTrader: (1)

They will be released in a couple weeks or so.

Stang's Bane

iTrader: (22)

Cary,what about the small bore l92's.

Cary@Perf-Induction

iTrader: (1)

Those will be available in mid october. All the L92/LS3 configured heads will be available through Mast Motorsports.

v8pwr

iTrader: (19)

Any chance of the price coming down some ? They look great but cost as much and more as other assembled options when they're bare , assembled they're well over $3k .

NemeSS

iTrader: (127)

those are top notch heads, and a bargain at 3k$
oe l92 are less than 1k assembled and were designed for budget type builds

v8pwr

iTrader: (19)

So are AFR's , TrickFlow's . & the original ET's . All of which are are aftermarket castings with the same relative amount of machining . Edelbrock & GM offer a HIPed casting for that much (although not CNC ported) , I just think that these could be offered for a little less money , be very profitable , and sell a lot more .

redsap05

What are the advantages of these over the oe castings?

Caveman

iTrader: (2)

I would like to see how these heads flow being a 12* cnced LS3 style head vs what the stock GM 15* cnced LS3/L92 heads flow.

SLOC5LS6

I'm curious about the results of these heads on a LS1/6

formula17

iTrader: (4)

They wont fit on an ls1/6 they need a 4" bore. You would have to go with the small bore Ls3 head.

melsie68

iTrader: (8)

Will a 4-barrel style open plenum manifold be available for these heads other than the GMPP or Vic Jr.?

flatchat

Perf-Inductions. I will be running a set of MAST med-bore heads and Cary's manifold on a 408 deal. If you want more info or are looking to buy a some heads pm me.