3404spdfish
Well-Known Member
I am about to buy some aluminum heads for a base block of 400, any suggestions, or a wish I did this rather than that type input. First set of aluminum heads and first big block build
Aluminum heads
- Thread starter 3404spdfish
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Much depends on how much you want to spend and what your intentions are for the engine/car combination.
Figure out your hp goal,intended usage, and a realistic budget. Then double it just to be safe.
These days you have 440 source as entry level, Trick Flow as the current go to, and Indy for big power.
These days you have 440 source as entry level, Trick Flow as the current go to, and Indy for big power.
cookietruck
Well-Known Member
These also.
Edelbrock casting basically
promaxxperformance.com
Edelbrock casting basically
MAXX 210 BB MOPAR (Sold in Pairs) - PROMAXX Performance Products
Mopar Nation now has options. Our BB Mopar 210 has given the Mopar enthusiasts a great power producing head at a price that cannot be beat.
promaxxperformance.com
Trick flow 240 for the street, street strip.
Trick flow 270 for the street, street strip or full race.
I have tf 240s, I just ported mine to in between port size. They made plenty of power as ootb but I wanted just a little more.
Wish I would have started with the 270s though.
Indy has lots of heads, then predator heads and good ol brodix B1 ( next for me)
Trick flow 270 for the street, street strip or full race.
I have tf 240s, I just ported mine to in between port size. They made plenty of power as ootb but I wanted just a little more.
Wish I would have started with the 270s though.
Indy has lots of heads, then predator heads and good ol brodix B1 ( next for me)
autoxcuda
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And add a 470 or 500 stroker kit for the 400 with some out of the box TF 240’s.
Then, could even run RPM or mild single plane intake with 230 @050 cam 110 separation and have super streetable 500+ hp. That will blow off nearly every street tire on the street in an A-body
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You probably need to give us some information as to what you intend to do with this engine, how many cubic inches it's going to be, what vehicle it's going in, and how you plan to drive it. Asking for what heads to buy without giving us any information is probably either going to have you way underheaded, or way overheaded.
Tom
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TT5.9mag
Two atmospheres are better than one
I was at westech a few days ago and they were running a combo on the dyno that was almost exactly like what you described. 10.5:1 comp 512, trick flow 240s, 231/237 cam. It made huge torque. Like 630lb/ft at peak. But was way down on power and peaked really early IMO. Only like 530hp at 5400. Needed way more camshaft for the cubic inch.
cookietruck
Well-Known Member
Dual or single plane intake?
famous bob
mopar misfit
IF , your going to buy new alum. heads "go with the t.f. 270`s , big motor can handle them !!
jos51700
Green Bearing thread connoisseur
With tall gears, I'd enjoy the hell out of that. I enjoy pulling torque against gears way more than revving to the moon.
PRH
Well-Known Member
It takes a fairly stout cam to get a pump gas BBM stroker with std port heads to peak in the 6000 range.
Often, that ends up being a big enough cam where it doesn’t always play well with other aspects of the overall build.
TT5.9mag
Two atmospheres are better than one
Yea I spoke with the owner quite a bit about it. My first two thoughts were, it needed more camshaft and more cylinder head. 240ccs on 512 inches is underheaded IMO and 231@050 on 512 inches is under cammed. There were multiple changes I would have made. But he seemed happy with it, And that’s what was important.
TT5.9mag
Two atmospheres are better than one
Trick flow single plane.
TT5.9mag
Two atmospheres are better than one
PRH
Well-Known Member
How high did they take it, and what were the numbers up near the end of the pull?
Cam Specs look like a XE275HL.
Cam Specs look like a XE275HL.
TT5.9mag
Two atmospheres are better than one
I looked at the dyno sheets as a passerby mostly. I was not involved in the tuning or anything else. It was my own curiosity making me stay. I will be stopping by there today a little later and I’ll see if I can answer your question. I remember seeing 6000 on the graph and it fell off pretty hard after peak but I don’t want to quote numbers because it would be speculation at this point.
My 505 with TF 240 M1 single plane and a 247/253 hyd roller peaked hp at 5400.
cookietruck
Well-Known Member
Wow. Would’ve expected a little more rpm.
TT5.9mag
Two atmospheres are better than one
PRH
Well-Known Member
Let’s be fair on this one…….as there are caveats…….
One pull with zero tuning, on a dyno that was having a hard time keeping the engine from running away isn’t a thorough enough test session for me to declare the results as definitive for the combo.
Might the peak still have been 5400 after exploring some timing and carb tuning changes? Sure…… but that session didn’t provide that opportunity.
I would have “expected” it to peak a few hundred higher(whatever that’s worth).
PRH
Well-Known Member
Ah ha……… I didn’t see that one coming.
Machineman63
Well-Known Member
I never hear anyone mention the Maxwedge dual plane from Indy (2D?) as a viable option.
what are the thoughts on this ?
what are the thoughts on this ?
cookietruck
Well-Known Member
Just looking.
Howards lobe list has “Aggressive Ramp Hyd Roller” lobes
231@.050, 155@.200
237@.050, 157@.200
There are standard ramp HR lobes that it could be also..
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