@amurican35 300 is the cubic inch displacement of this particular engine. There was also a shorter stroked version that came out to 240 cubic inch. Both built by FORD. Prices vary, many need rebuilt.
300s were used more. 240s stopped production in the later 70s i think. The 240 and 300 had the same block. Rotating assemblys are different. Combustion chamber in 240 heads is smaller, yielding approx. .5 increase in compression when used on a 300.
check out the holley mech secondary 450cfm, cant beat it for $250, summit says its for dual carb applications but its perfect for big sixes, i knew a guy that ran one on a 4.3 chevy and it ran bitchen, was planning on running one myself until I scrapped my 300 build
@dezertdisasters I used one of those on a built Chevy 250 I had, and it worked great! I am going to go with a 500cfm Edelbrock Thunder AVS on a Clifford intake manifold as my next upgrade. Also will replace EFI manifolds with either Hooker or Clifford 1 5/8" tube headers, and install a mild cam at that time. Will post a video after the upgrades are done!
@kargmeister1337 I got lucky and found a new Ford head in a crate on ebay for $300 shipped. I'd say if you find one it really depends on where you find it and what condition it's in.
@dirteeter32 The head upgrade made a big difference! I have picked up about 2 MPG, and the truck has a lot more power then it used to. The 1bbl Autolite carb has to go though. My next step is a Clifford intake with a 500cfm Edelbrock carb, and an Isky 262 Supercam. Check my other video of the truck accelerating to get an idea.......
@SRCAfan Yeah seams to run pretty quick, i just pick up an offy intake and holly 4 barrel 600 cfm, i'm also running 300 efi exhaust manifolds its a good upgrade makes the exhaust flow much better. I'll get vids up of when i have my intake and carb on. I just cant seem to find a 240 their dam hard to find around where i live, let alone finding a 300.
noce job!cant wait to get mine.keep an eye out for me
JohnnyDesaint 6 months ago
god look at that truck rock! so much tourque for that engine :)
MrTpengineer 8 months ago
i know this is a dumb question, but can a 250 inline run a 240 head or is it too big?
StickPeopleAndPuff 8 months ago
Where did you get your air cleaner?
bdotbak4 9 months ago
What's the "240" in the "240 cylinder head" a about . Who makes it ?
amurican35 11 months ago
@amurican35 300 is the cubic inch displacement of this particular engine. There was also a shorter stroked version that came out to 240 cubic inch. Both built by FORD. Prices vary, many need rebuilt.
300s were used more. 240s stopped production in the later 70s i think. The 240 and 300 had the same block. Rotating assemblys are different. Combustion chamber in 240 heads is smaller, yielding approx. .5 increase in compression when used on a 300.
check out fordsix.com
Adam
ClayPigeonKiller 11 months ago
Go with a chambered muffler like flow-master if you want it to sound good. Makes it Echo thus makes better sound.
evilperson86u 11 months ago
check out the holley mech secondary 450cfm, cant beat it for $250, summit says its for dual carb applications but its perfect for big sixes, i knew a guy that ran one on a 4.3 chevy and it ran bitchen, was planning on running one myself until I scrapped my 300 build
summit p/n is HLY-0-9776
dezertdisasters 1 year ago
@dezertdisasters I used one of those on a built Chevy 250 I had, and it worked great! I am going to go with a 500cfm Edelbrock Thunder AVS on a Clifford intake manifold as my next upgrade. Also will replace EFI manifolds with either Hooker or Clifford 1 5/8" tube headers, and install a mild cam at that time. Will post a video after the upgrades are done!
SRCAfan 1 year ago
how much does the 240 head cost?
kargmeister1337 1 year ago
@kargmeister1337 I got lucky and found a new Ford head in a crate on ebay for $300 shipped. I'd say if you find one it really depends on where you find it and what condition it's in.
SRCAfan 1 year ago
So how does the 240 head do for performence on the 300? i've been thinking about doing this to a 300.
dirteeter32 1 year ago
@dirteeter32 The head upgrade made a big difference! I have picked up about 2 MPG, and the truck has a lot more power then it used to. The 1bbl Autolite carb has to go though. My next step is a Clifford intake with a 500cfm Edelbrock carb, and an Isky 262 Supercam. Check my other video of the truck accelerating to get an idea.......
SRCAfan 1 year ago
@SRCAfan Yeah seams to run pretty quick, i just pick up an offy intake and holly 4 barrel 600 cfm, i'm also running 300 efi exhaust manifolds its a good upgrade makes the exhaust flow much better. I'll get vids up of when i have my intake and carb on. I just cant seem to find a 240 their dam hard to find around where i live, let alone finding a 300.
dirteeter32 1 year ago
@SRCAfan did the head throw off your ign timing? are you still running normal vac. advance?
saxbros 7 months ago