quarterhorse

hi i bought a set of supposably crane cams for my 4.6 97 gt for my 2001 pi heads that i bought. well i dunno what stage they are or the duration or lift. so the only thing i know is that on the cams it has the numbers 25100R and 25100L for right and left but i cant find the part number 25100 anywhere. please help if you know what kinda of cams these are

mdvaldosta

Looks like their not Crane Cams... looke like ModMax cams:

ModMax 370-25100 4.6 & 5.4 SOHC N/A Mild Street Strip

(I) 214@ .050 .525 lift
(E) 214@ .050 .550 lift

LS 112

quarterhorse

thanks i need that so much. do know what the horsepower and torque increase are for these and will they have a lope to them

jdaniel

They will definetly have a lope to them. They are good for about 30 to 40 hp. Best thing is that you can raise the redline to the engine and you will have more push though the powerband. 2500-6000rpms

quarterhorse

now ive never heard of modmax are they any good. and how do u figure they will had 30-40 hp

BCisme

because they have an aggresive lift and lobe separation angle. that's how.