bugy

this is my 440 ci into LSX block, mistubishi pick up weighting 3600 pounds 4x4, only drag racing(5000 feet above sea level), want you opinion to choose the most convenient heads for this setup, current head are 243's, im considering to change them for a pair from any 6.2L engine (truck ones) they have bigger runners and valves, i know the best choose would be to get some aftermarket for this, but in my own setup cathedral 243's against square 6.2L heads from IV gen... what do you think guys about both in my own setup?

87silverbullet

iTrader: (11)

For a motor that big I wouldn't use a set of LS3/L92 heads. They would be better than your 243's you have now but to get the best out of it using a stock GM casting, I would go with and LS7 head. You have the bore for it and the cubes to use them.

Here is an aftermarket casting LS7 head from PRC thru TSP.

http://texas-speed.com/p-488-prc-ls7...der-heads.aspx

Don't forget to check West Coast Cylinder Head also.

http://proheads.com/

ws602

iTrader: (2)

I would call Richard a west coast cylinder heads great customer service and great products

TheLS1Lover

If you literally want the BEST head. Mast Motorsports Canted Valve MOZEZ Cylinder Heads are where its at.

cam75w/ls1

iTrader: (2)

Ordered a set of the 255 cfm heads(LS3)style and found out the Jesel rockers wouldn't work. When they put bigger valves in these heads they spread out the bolt pattern for the rockers. My $2k set of Jesels won't work now so I have to put stockers on it now or run Yella Terra's. Going to call Texas Speed on Monday to see what my choices are.....

Camaroking1996

Would say Mamo fully ported AFR's.

COPO9560

Considering the $$ you have already invested in the short block, a set of LS7 style 6 bolt heads would be in order. MAST and others can provide you a this style head that can provide significant power when matched with the right cam and intake combination.

If you are looking at stock heads only, the L92's unported will likely make more power than your unported 243's with the right cam. Either option is leaving a lot of hp on the table.

LSX-coupe

iTrader: (1)

Id use some TEA 265 trick flows if any street use id step down to the 245 setup. I love my 245 TFS.

LSX-coupe

iTrader: (1)

http://www.totalengineairflow.com/pr...ylinder-heads/

carreras

iTrader: (7)

I agree on the tea tf 265s

loosews6

iTrader: (1)

mast heads

bugy

thank you for replying, definitely i'll drop those 243's i have another option in my hands right now, a pair of trick flow 225 int runner, it says TFS-LS1-1X 7066 CNC included, by the way 243's were CNC ported as well, what do you think about these TFS? would they help good enough? or should i consider to get something more? i got these in my hands so if they help good enough i'm putting them on it.

bugy

anyone??

thobart

iTrader: (3)

I have TFS 235s on my 427 build. When I called TEA about it they said either the 235 or 245's for that cube motor. Seeing that you are a few more cubes then me I would assume at least the 235 and lean more to the 245. Here is a pic of the heads with my Jessel sportsman rockers on them but no springs yet.



The 6 bolt heads ran me 2k with TEA doing the valve job for the manley valves I went with.

Ls sn95

Give bob at all pro a call if you have some extra money to spend

bugy

well, talking about budget that would be an issue, that's why i asked about L92 heads which are easier to get for me, i also consider this AFR 225 are kinda small for this 440, until now i've found out i do need bigger runners, anyway thank you for supporting guys.

blackonblacksls

iTrader: (1)

I'm Selling a Cnc ls7 setup With titanium intake Valves. Hollow exhausts. With 54cc chambers. Dual springs and a matching cam. Made 560rwhp in my 427 cAmaro.

Looking for 3k

KILLERARMY

All Pro West Coast Cylinder Heads..

bugy

those sound great what are runners volume from those LS7 ones?

blackonblacksls

iTrader: (1)

260ish cc

Made a **** ton of torque with this setup.

Only needs to be reved to 6200 or 6300 and makes 530lbs of torque. Cam drives good too if your interested in that.

Trying to sell it all and buy a high end all pro or something similar setup. Try to make some more power.