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Mod | | | Forums66 Topics128,014 Posts1,055,324 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#12385 10/03/2003 9:20 PM | Joined: Feb 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | Hi guys , I have forgotten what year GM changed the 216 from dome top pistons to flat top pistons ,, can some one please remind me ,, thanks .
I want to know if a '39 head will fit onto a '47 block ?? | | |
#12386 10/03/2003 10:54 PM | Joined: Jan 2001 Posts: 428 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 428 | '37-'40 pistons are domed. The head will bolt up but you won't get much compression. | | |
#12387 10/03/2003 11:00 PM | Joined: Jan 2001 Posts: 428 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 428 | Forgot to add,you could mill the head to get compression. According to an old book I have,the 37-40 head can be milled as much as .187 when used with the flat top pistons and the intake valves don't have to be recessed like on a later head. | | |
#12388 10/05/2003 6:59 AM | Joined: Feb 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | Thanks brjr51 , I interperet what you have said to be that the flat top pistons started in 1941 .
I think that will sort me out , thanks . | | |
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