heads
#1
heads
I am building up a 4.6 GT motor. Ihave found a set of heads that i could purchase with in the nest few days. There is one problem. I was wondering if the 5.4 pi heads of a truck could fit the 4.6 block that i have. If not i do have interest in another set of 4.6 pi heads that could be mine. I just want to know if the application of 5.4 heads on a 4.6 block is possible. Thanks</P>
Andrew</P>
#3
heads
Yeah i will probably put a hot cam and new roller rockers and get a port and polish job. Does any one know how much power a 5.4 heads with a port and polish will give my 97 gt<edited><editID>97 GT</editID><editDate>38006.9764930556</editDate></edited>
#4
heads
where r u goin to purchase new roller rockers from for the ohc motor? im under the impression there are no aftermarket ones. also what mods do u have and what cam size are you going to choose? also i think the 5.4 and 4.6 heads are identical so the only gain ur gettin is from the port and polish, could be wrong though
#5
heads
THERE IS ONLY ONE COMPANY RIGHT KNOW THAT MAKES NEW ROCKER ARMS FOR A MOD MOTOR. BUT THEY ARE 1600 BUCKS. BUT ON A STOCK MOTOR THEY PRODUCED 60 HP. SO IF YOU GOT IT GET IT. TO MAKE ANY HORSE POWER YOU GOTTA GET A SET OF PI HEADS. 96 TO 98 HEADS. ARE JUNK EVEN IF YOU PORT THEM. BUT WHEN YOU GET THE PI HEADS YOU HAVE TO CHANGE THE UPPER INTAKE ALSO.</P>
#8
heads
Originally Posted by Eddie
Sixteen f***in hundred dollars for a set of rocker arms!!!!!???? That's rape!!!!!!!!</P>
That's what happens when the aftermarket is almost nonexistent for a particular application. The less options there are, the more expensive it is. That's why you can get an aftermarket Chevy or Ford block for about $1,000, but the only aftermarket Pontiac block is $3,000, because it's the only one. It's all about competition, and it's all about money.</P>
#10
heads
yeah i just went to the web site and was blown away. The company is second street speed. The two valve is like 1600 and for a 4 valve it is dounle almost 3600 bucks. No way. All i will probably do is get them ported and polished and pick out a nice cam for the heads.
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