73dart360
Well-Known Member
They look like nice built heads with good porting
Have to respectfully disagree! I have them on my .030 over 383 right now! Bolted right on
Have to respectfully disagree! I have them on my .030 over 383 right now! Bolted right on
I had Iq52 check em out and try them on the 383 bore before hand and was told they are good for approx .700 lift before valve interference with wallsI remember you were gonna try it I'm glad i was wrong heard they weren't for the 383.
op might use flattop piston? what kind of clearance with the trickflow, with the comp 294 and no cut in pistonsI had Iq52 check em out and try them on the 383 bore before hand and was told they are good for approx .700 lift before valve interference with walls
op might use flattop piston? what kind of clearance with the trickflow, with the comp 294 and no cut in pistons
I would have never thought.I didn't clay the piston but my speed pro Pistons are .028 down in the hole. I have no issues with valve to piston clearance
can you tell me your setup,What kind of power are you makingHave to respectfully disagree! I have them on my .030 over 383 right now! Bolted right on
can you tell me your setup,What kind of power are you making
It's doing pretty good for a stock bottom end.
It's running 11.60's
did you only buy the heads ?
what rocker setup?
They look like nice built heads with good porting
Oh sure, big cam, 7,000 rpm, 470 ci = big power.
But what if you have 400 ci, low compression, a .430" lift cam and 5,200 rpm? Surely that 270+ cfm at .400" lift with those heads will send that lowly 400 into convulsions and it will just shut itself off and make no power over the stock head.
Right?
I mean, way more head than the camshaft can handle. Useless!
Waste of money and time. That 400 needs smaller port heads! Maybe a conversion to install X or J heads on the 400 big block.
Bwaaaah, ha, ha, ha, ha..............!
Sorry, it's 5:30 AM here and I should be at the lathe working on the cam journal sleeve.
Good morning all!
Jim
Fit on there just fine and make a ton of power if you put a big cam in there and twist the tail past 7000 rpm. Here is video of a 400 block with TF heads making 720 hp on the dyno. This engine is running on unleaded premium pump gas.
Oh sure, big cam, 7,000 rpm, 470 ci = big power.
But what if you have 400 ci, low compression, a .430" lift cam and 5,200 rpm? Surely that 270+ cfm at .400" lift with those heads will send that lowly 400 into convulsions and it will just shut itself off and make no power over the stock head.
Right?
I mean, way more head than the camshaft can handle. Useless!
Waste of money and time. That 400 needs smaller port heads! Maybe a conversion to install X or J heads on the 400 big block.
Bwaaaah, ha, ha, ha, ha..............!
Sorry, it's 5:30 AM here and I should be at the lathe working on the cam journal sleeve.
Good morning all!
Jim
Yes it is a 470 inch stroker but that doesn't really matter much. You can make the same horsepower with a 400, you just have to spin it higher. Torque is a different animal, typically torque and displacement are more closely related.is that a stroker