my new starter went out.... i blame the headers!

[dinnut]

i have a few month old starter on my truck. the headers are fairly close to the starter and i have not had the oppurtunity to get a heat shield on it yet. today after i washed the truck i started it up drove it around the house a bit and turned it off for a minute to go do something... came back out and starter was like kicking back and not starting so i stuck a battery booster on it and all that did was speed up the starter so i waited and went back and started it up and it started so i move it back to its parking spot and leave it running thinking the battery might be low... so after a while i turn it off. go back after while to start it up to move it somewhere else and the starter is at it again. after a few tries all it does it spin now!!!!!! im pretty pissed. the starter is a rebuilt oreilly unit.... im hoping it has some kind of warranty ill have to find receipt!!!!! the truck hasnt been driven much on the street maybe 10 miles or something since new starter but its been driven around my house quite a bit.... i think my engine is running too hot also....

now... will a heat shield stop this? seems like headers are pita. they are in the way of getting starter on and off of truck which is a pain also.... what else could it be?