Quick Question......

lutter94 · Apr 25, 2011

So I am putting some MAC LT's on the mustang. Looking at putting some stage 8 ford racing locking header bolts. But I see they have 1" and 3/4" long. The bolts in my stock manifold are 1", but the bolts MAC sent are 3/4".

So which is it 1.000 or 0.750........

sn95gtvert · Apr 26, 2011

whats the thickness on the stock flange vs the macs?

96cobra_12 · Apr 26, 2011

Go with the 1" bolts

coupe5ohh · Apr 26, 2011

i have a mac prochamber that will bolt up nicely with your LTs im asking $175+shipping..lmk

lutter94 · Apr 26, 2011

sn95gtvert said:
whats the thickness on the stock flange vs the macs?

Already thought of this, but the headers are at my parents house, since that is where I am working on my car at. Will be there this coming weekend, but it would be good to get them ordered....

NmcgrawJ · Apr 26, 2011

1" are more expensive and provide a better grip. Mac isn't going to send out the more expensive bolt if the 3/4" will work.

3/4" came in handy since they are easier to get in around a large primary for me.

I used the cheap bolt sets from autozone with a Allen head. Bought the 1" and 3/4". Used a couple lock washers and called it a day. Cheap. Works great.

I'll never buy fancy bolts. The only thing I'll pay $ for are studs.