[MySallyMI]

Today i went outside and took my car apart some and was going to check and see if my timing was right, i had my valve cover off, tried to turn the motor to line up the dark chain length with the dimple in the cam sprocket and what happens when i turn the bolt on the harmonic balancer...it ust spins freely. Somehow it stripped, the crank itself has no threads left in it. So now i need a new crank or need to have it rethreaded. So im ust going to buy a forged crank with forged h-beam rods, and some forged pistons. While im at it i was thinking about getting a stroker it and boring my block .30 over. Ive been drooling over the Livernois stroker kit and was curious how much it usually costs to have your block bored. Also if anyone has had this done wont i need to have different sized pistons? What do you guys suggest in my situation? I was going to have to forge my internals before adding a blower anyways so this just comes sooner than later.

[sonicblue]

since you are in texas or atleast thats what it says by your avitar. i would call the guys up at LME they just built my motor and a few other people i know around here. they do good work and can hook you up with everything you need. definitely stroke it! i am kickin myself for not doing it.

[zkid01]

Sorry to hear about that man. Stroke that bitch if you want to. Just make sure that you find a quality shop. And that everything is balanced correctly.

[bransdaman78]

well even a forged kellog crank would be an upgrade, im thinking about doing just crank and rods with stock pistons and no cylinder work, it save alot of money

[Drgnracin72]

why stock pistons. they are weak too. if your upgrading everything else may as well do the pistons. it would be retarded not to

[bransdaman78]

well no, because then you have to bore the block and buy the most expensive part - the pistons, i thought about just doing crank and rods as a somewhat easy swap - cheap, and painless, also just a straight bolt on and the stock pistons are good to 550rwhp or so, ive seen them hold 650 personally but that is gettin greedy.

[MustangMatt96GT]

Why would you have to bore the block? And personally I think you are just asking for disaster. If your going to do something do it properly the first time. And this is also the first time I heard about stock pistons being about to go to 550. I think that you are full of it!

[bransdaman78]

yea im full of it, and youre asking for advice over the internet?


actually the car was a 96 cobra coupe, red w/ black roof. stock crank, forged rods, stock pistons, stock heads and stock cams with a procharger f-1R, 650 rwhp. check it out (it might still be there) at Harris racing.com - its was paul's car..... and the the price difference between throwing on rods and crank vs. moding the block is about 2k thats why. true its not as good as forged pistons - but thats why you wouldnt want to push it, but everybody who knows jack about mustangs knows the rods are the weak link, and the crank is only replaced to give you a higher redline. so long as you give a rich tune, keep the timing back the stock pistons are pretty good, use boost to make more power - not a stupid tune, the power doesnt break the rods 90% of the time its the more of the rpms, so shift at 56-5800 and it should last a long time.

[MustangMatt96GT]

Well I am not asking for advice over the internet I am here strictly to help and get opinions. And well I know my share of Mustangs and know that the rods are the weakest link. The crank is exactly what you said it is for, but I still think that the pistons will not hold 550 RWHP! And even if you are rebuilding the motor and still using the stock pistons it would be a good time to get it machined out so its smooth and put new rings on. At that point what is the extra 600 $ that will ensure you that 600 RWHP? I really think that if you are building a car of that caliber you definatly should not take short cuts. Because you are almost gaurentied that you will have to tear down the engine again and put new pistons on it eventually. Why not just do it once and spend the extra money ahead of time because if you dont it will more than likey cost you more money than it would have if you had just done it in the first place.

Also another thing to consider is that that was on a 4V and not a 2V. I have heard but do not know if its true, but I think that the 4V pistons are different than the 2V.

Sorry to get all over you but I just want to help!

[sonicblue]

i agree with drgnrcn on this one. you are already in there its dumb not to upgrade. from what i have heard i wouldnt trust or use harris racing as a example.