LSx Heads for 5.3

[tfreer85]

Okay so I've found a really good deal on a low mileage 5.3 LSx Truck Motor. My goals are to get as much HP as possible out of it. Heads are HUGE part of getting a good HP goal. With several companies now making heads for the LS1/LS6 engines, what would be good for the 5.3L motor? I'd prefer to keep the cost under $1700 for the heads, so no AFR's guys (I know the are the best). I'm looking to swap on LS1/LS6 heads to be able to run the FAST LS6 intake.

 

There are Patriot Heads:

http://sites.reachtheworld.tv/waterNew/default.asp?T=505234&DID=1225

 

There are Darts 205 and 225 Heads:

http://store.summitracing.com/partdetail.asp?autofilter=1&part=DRT%2D11021122&N=4294925232+4294838998+4294867081+400333+4294908216+4294924385+115&autoview=sku

and

http://store.summitracing.com/partdetail.asp?autofilter=1&part=DRT%2D11011112&N=4294925232+4294838998+4294867081+400333+4294908216+4294924385+115&autoview=sku

 

There are Edelbrock Heads:

http://store.summitracing.com/partdetail.asp?autofilter=1&part=EDL%2D61969&N=4294925232+4294838998+4294867081+4294908395+400065+4294908216+4294924385+115&autoview=sku

 

There are a couple other heads out there as well, (recommendations welcome). I know that having too large of heads can hurt performance on a smaller displacement motor. Also what type of cam grind @.50 would you choose to go with the head you selected? My overall goal is to run somewhere in the 10's and don't mind NO2 for 1/4 racing. Thanks, for any help, tips, suggestions.

 

Tyson

[DaleMX]

You have got to watch the valve size for your bore. I suggest talking to Gunther at Patriot and follow his lead. I paid around 1,100 for my Absolute Speed stage 2 5.3 heads for my 5.7. Jay set the heads up to match my TR230 cam and I must say that when you match heads and cam up you get instant throttle response and tons of torque. TEA can also lead you in the right direction and they have a great reputation for the truck stuff.

[tfreer85]

You have got to watch the valve size for your bore. I suggest talking to Gunther at Patriot and follow his lead. I paid around 1,100 for my Absolute Speed stage 2 5.3 heads for my 5.7. Jay set the heads up to match my TR230 cam and I must say that when you match heads and cam up you get instant throttle response and tons of torque. TEA can also lead you in the right direction and they have a great reputation for the truck stuff.

Thanks Dale, thats what I've gathered from reading on LS1tech.com, most of them say to give the guys a call and they'll help match up your components for the best combo. Thanks for weighing in,

 

Tyson