CNC-Dude and FTF:
I just wrote a (too) long post regarding the 240 vs 300 inch question and it apparently got lost in the "ether", maybe running into the 'Flyer's most recent post.
In any event, I have been under the perhaps mistaken impression that the 240/300 Ford OEM head would not achieve the necessary flow to support a 300+ ci race motor spinning at (say) 7500 RPM. From what the "calculators" say, the head would need to have an intake flow of just over 302 cfm. I didn't think you could get there but given CNC-Dudes recent post and the 'Flyer's great article, maybe (in the right hands) such flow is achievable.
But my interest specifically in the 240 version of the big Ford was primarily based on the Inliner's D/D[ragster} class rules that limits the displacement to a maximum of 260 ci. There are a number of engines that would be good candidates including the 250 Chevy, the 225 Mopar slant six, the 242/258 AMC/Jeep, and the 240 big Ford. There may be others but they don't come to mind . . .
'Flyer, if I get off dead center on this project, I'm sure I'll have (too) many questions to ask and I appreciate your willingness (as well as others on the inline six forums) to share your experience and expertise.
Russ
I just wrote a (too) long post regarding the 240 vs 300 inch question and it apparently got lost in the "ether", maybe running into the 'Flyer's most recent post.
In any event, I have been under the perhaps mistaken impression that the 240/300 Ford OEM head would not achieve the necessary flow to support a 300+ ci race motor spinning at (say) 7500 RPM. From what the "calculators" say, the head would need to have an intake flow of just over 302 cfm. I didn't think you could get there but given CNC-Dudes recent post and the 'Flyer's great article, maybe (in the right hands) such flow is achievable.
But my interest specifically in the 240 version of the big Ford was primarily based on the Inliner's D/D[ragster} class rules that limits the displacement to a maximum of 260 ci. There are a number of engines that would be good candidates including the 250 Chevy, the 225 Mopar slant six, the 242/258 AMC/Jeep, and the 240 big Ford. There may be others but they don't come to mind . . .
'Flyer, if I get off dead center on this project, I'm sure I'll have (too) many questions to ask and I appreciate your willingness (as well as others on the inline six forums) to share your experience and expertise.
Russ