Cbrakllr

iTrader: (2)

I was wondering im going to forge my motor to handle a 300 shot and was wondering about heads, Im going to do an MS3. I dont really need all the power all the time i want to get most power from spray. So I dont want to buy any big name heads, I just want to get my heads ported (stock heads) or buy a set of ported stock ones. How much will it cost to get this done? Also how often do they come around on the for sale section?

SUX2BU

iTrader: (14)

There are some good budget heads from our sponsers for around 900 i belive.

camaroextra

iTrader: (10)

my friend Bobby is selling some nicely ported stock heads

https://ls1tech.com/forums/florida-members/496615-fs-ported-ls1-heads-w-918-springs.html

'Trust'

iTrader: (24)

I think the hassle of pulling off your heads and getting them worked on wouldnt be worth it, i'd get some LS6 heads from one of the sponsers, they have some good deals, or if you can get lucky try to find some p&p'd 241's, the 853's arent as good, and are harder to get a good job done on them due to restrictions of the actual heads.

Cbrakllr

iTrader: (2)

Is he still selling these heads?

PREDATOR-Z

you mean PP 853's, YES

Quik

iTrader: (7)

what are your goals for this car? and really whats the reason to run such a large shot? cam and bolt ons gets you 11s cam and bolt ons with 100 shot gets you 10s as long as rest of combo is up to par

Cbrakllr

iTrader: (2)

My goals are 9's and i want to run run a 300shot just one time then lower it to a 200-250 shot. But my ultimate goals are 9's mid or high. Im a budget racer as well.

PREDATOR-Z

stock block will not last long at those levels

Wicked_Hugger99

iTrader: (1)

Are the 853s the 97-98 LS1 heads???
Also, whose selling budget heads for $900 bucks??

PREDATOR-Z

TSP, PP sell 243 castings, Stage 1 (meaning stock valves, CNC ported) with LS6 yellow stripes (good to .570 lifts) for $875>900

Wicked_Hugger99

iTrader: (1)

I know stage 1s are ported only & have stock valve sizes(not tryin to be a smartass or anything, just sayin i knew that) but what cars have the 853's and which ones are 243sHow much power would you pick up on average w/ these PP Stages on a bolt-on f14 232/234 .598/.598 112lsa cam thru a built 4L60-e w/vig3200 and a 12-bolt w/ 3.73(I'm at 394rwhp locked right now) Can i get them to work with my cam lift of .598 w/ diffrent parts since the PP 1s are good to only .570?? drop rocker ratios or forget it and go PP LS6 stage2 for $1400 bucks? Either way, im gonna have to wait awhile cuz alot of unexpected expenses have come up in the last week!!!
Thanks for any input

PREDATOR-Z

243's are LS6 castings (so all Z06 had them), but Z06 heads come with lightweight hollow valves. These are 05+ LS2 heads with stainless valves. That is the only difference.
Now for the cam: FM14 is too big to benefit from those heads without flycutting since you need to mill to raise SCR and DCR.
A smaller cam on a tighter LSA without flycutting will make more power accross the power range. Maybe not peak, but where it matters.
If you already have the cam the heads with duals will help but the setup will not be maximised.
This is the overcammed theory and application. (which few poeple want to hear about, because a lot of poeple believe bigger is better)

Wicked_Hugger99

iTrader: (1)

so you think i went to big then??? My graph shows a solid pull w/ good power under the curve.