Author Topic: BBM cast iron Block torque specs (Read 1284 times)

Jb427 · « **on:** October 25, 2020, 02:23:11 AM »

Is the BBM iron block main and cross bolt torque spec's the same as a std 427 cross bolted block? The BBM has 7/16 cross bolts being larger then std?.

blykins · « **Reply #1 on:** October 25, 2020, 04:44:00 AM »

It’s different because the fasteners are different. I use 110 on the mains and 55 on the side bolts.

Jb427 · « **Reply #2 on:** October 25, 2020, 05:46:24 AM »

I thought so Thanks

BattlestarGalactic · « **Reply #3 on:** October 25, 2020, 08:28:58 AM »

The sheet I have says

Mains: 35-70-110 (3 steps)
Sides: 30-65 (2 steps)

blykins · « **Reply #4 on:** October 25, 2020, 08:50:55 AM »

Whoops, yes, 65, fat fingered the 55, laying in bed using my phone.

I do use 3 steps on the side bolts too though out of habit.

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Author Topic: BBM cast iron Block torque specs (Read 1284 times)

Jb427

BBM cast iron Block torque specs

blykins

Re: BBM cast iron Block torque specs

Jb427

Re: BBM cast iron Block torque specs

BattlestarGalactic

Re: BBM cast iron Block torque specs

blykins

Re: BBM cast iron Block torque specs