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Jeff Stout · 03-17-2020, 11:32 PM

This is my first olds motor and I think I can run the 5a head, but told the 7a was better. Full roller rocker on pedestal with a rod that connects each pair. Found on Ebay. Mine is 138 hp motor and I think only made 2 years. It is 942 diameter roller lifters and 474 lift. I had 6.14 originally and 7k at the lights made me nervous. Now 6400 with 5.57 and lost zero et with 30 tire.

03-17-2020, 11:32 PM	#5
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,407 Likes: 53 Liked 654 Times in 254 Posts	Re: 307 Olds Stocker Motor This is my first olds motor and I think I can run the 5a head, but told the 7a was better. Full roller rocker on pedestal with a rod that connects each pair. Found on Ebay. Mine is 138 hp motor and I think only made 2 years. It is 942 diameter roller lifters and 474 lift. I had 6.14 originally and 7k at the lights made me nervous. Now 6400 with 5.57 and lost zero et with 30 tire.