4.1 Guys step in i have block questions..

[earlbrown]

That might be a trick since the 4.1 uses shorter studs/bolts than a 109 block. I'm guessing the GN1's have different height bosses than 8445s?

 

[ek02]

I used the studs Champion says to use on my 4.1 with GN1's for a 109 block and some were too long and some too short. I ended up mixing in a set for an early 3.8. I had to use double washers on the long middle studs from the 3.8 set.

 

[earlbrown]

Sounds about right. 3.8 blocks let the studs sit lower relative to the deck since the top threads are missing.