small block build ?

-
I

ironram

Active Member
Joined
Dec 20, 2011
Messages
31
Reaction score
0
Location
fairfield ca
Hey guy's im new here and have read alot of interesting and informational things here. i have a question i am picking up this short block from a it's a 1974 360 with balanced rotating assembly bored 30 over with speed pro hyperuetectic pistons and he said (I changed the pistons to up the compression in order to run aluminum heads and take advantage of the built in quench of the smaller combustion chambers. These pistons are about as close as you can get to zero deck without decking the block) and so my question is i found a set of eddie heads (
Edelbrock #350-60179

Performer RPM Chrysler 340
Cylinder Head
171cc intake ports
65cc combustion chambers
2.020'' Int/1.600'' Exh valves
1.460'' valve springs
.575'' max lift and wondering would these work out on my build what would these do to the compression and are they worth spending the money He's asking 1200 thanks in advance.
 
eldy's are damned good heads, but compression and cam is going to be your big issue, Do you know exactly how far below deck the pistons are? I could calculate the compression for you if you do. I know Speed pro has a selection of pistons, but most of their available compression heights are the same as stock pistons, I doubt that they are really and truly the pistons that will get you "the closest you can to zero deck without decking the block" Keith black and other aftermarket pieces normally have taller compression heights from what I've looked up.

Also, cam-wise, .575 lift is as big or bigger than anything you're likely to run on the street. so that's a point in the head's favor. The only issue I see is that $1200 is about what the heads cost new... I mean: http://www.summitracing.com/parts/EDL-60779 If you can't talk him down, I'd buy 'em new.
 
Wrong head if you want quench unless you deck the snot out of those 60179's

The 60779 is the head you want if going ede's.

Which exact piston was put in the engine? something similar to a KB107?
 
It sounds like the 116 hyper. The guy said,
(I changed the pistons to up the compression in order to run aluminum heads and take advantage of the built in quench of the smaller combustion chambers. These pistons are about as close as you can get to zero deck without decking the block)
Click to expand...

The piston height between the FM 116H and the KB 107 are very close. There not low comp. replacement slugs. Those slugs (FM116H) are found in the MoPar create engines and short blocks. There a coated wall piston and very good slugs.

I have had luck with the use of KB-107's coming to zero deck on OE blocks from old cars. A few have had to have the decks milled.

Cracked hit this on the head and good!
Wrong head if you want quench unless you deck the snot out of those 60179's
The 60779 is the head you want if going ede's.
Click to expand...

I have run this combo with a zero deck slug and closed chambered Edel. head. It is pump gas friendly. Though I would not run a small cam with it. Head gasket dependent, you can be ruffly @ 11-1 and run 93 octane easy.

Also worthy of note! I have met a good number of MoPar racers running this same basic combo in street trimmed cars to mildly lightened Dusters and Darts. (Often with the MP create short block with zero deck pistons and the Purple 292/.509 cam)
The car combo varies from mid 12's and streetable gears to mid 11's (And probably lower somewhere in the states if someone got a real light A body and set up designed to just simply run the track and only the track.)

I agree with derranged on the cam. No need to lift the valve very high, though I like to when I can.
 
ok guys thanks for the response's the pistons say H116cp 0.030 on them and the heads im hoping to get for around 800-900 the cams i am looking at are
Lunati #638-60403LK
Camshaft & Lifter Kit
Lift: .513''/.533''
Duration: 276°/284°
RPM Range: 2200-6400

lunati 60404lk Voodoo Camshafts
Camshaft & Lifter Kit
Lift: .494''/.513''
Duration: 268°/276°
RPM Range: 1800-6200

this is going into a dart and i would like decent power and thinking of useing the eddie air gap intake and would like to run pump gas its gonna be a street car maybe a few trips to the track now and then any and all help you guys can give is greatly apprecieated
 
another note i found a guy selling a new set of w9 heads bare with new mopar ex-1.62 int-2.18 valves with them and unsure of the cc but for $900 are these worth picking up?
 
ironram said:
ok guys thanks for the response's the pistons say H116cp 0.030 on them and the heads im hoping to get for around 800-900 the cams i am looking at are
Lunati #638-60403LK
Camshaft & Lifter Kit
Lift: .513''/.533''
Duration: 276°/284°
RPM Range: 2200-6400

lunati 60404lk Voodoo Camshafts
Camshaft & Lifter Kit
Lift: .494''/.513''
Duration: 268°/276°
RPM Range: 1800-6200

this is going into a dart and i would like decent power and thinking of useing the eddie air gap intake and would like to run pump gas its gonna be a street car maybe a few trips to the track now and then any and all help you guys can give is greatly apprecieated
Click to expand...

IIRC, the 116 is about .015 short of a 107's CH. So it's going to be below the deck, add in your gasket plus the open chamber of those heads and you have no quench.

Either of those Lunati cams work really well. I believe you have the part numbers flip flopped above. The 03 is the smaller 04 larger of the two.

Use the air gap intake, it's a good intake, probably the best all around intake for a SB.

I wouldn't use w9's on a street car. There are some good proven heads for street car stuff, ede/rhs/eq, that don't require a bunch of special parts to run them. W9's generally take expensive stuff to run and they aren't anything special OOTB.
 
now what is quench? sorry if a stupid ? i can work on motors and put em together but when you get to things like this i dont know this is my first performance buildand want to doit right i would love to get 400hp out of it and a fast cam with a lopey idle.
 
ok i did look it up and kind of understand it so what kind of compression would i expect out of this build with these parts.
 
Ok guy's wondering what kind of power you think i might get out of my setup and if you think it will be a good setup my goal is 400-450 hp+ the build is a 74 360 block balance rotating assembly 0.030 over speed pro hyper H116cp pistons cam is a lunati voodoo speced at Camshaft & Lifter Kit 60404
Lift: .513''/.533''
Duration: 276°/284°
RPM Range: 2200-6400

with eddie heads but which should i use the 63 or 65cc head? and what CFM and brand carb would you guy's reccomend? and any tips on a decent header for a 71 dart. I would like to hit 10-10.5-1 compression so what head gasket could i use and or any head shaving or porting need to be done and all will be back with a stout 904 and 355 gears with 2.5in exhaust threw 2 chamber flows with turn outs just behind the rear wheels oh and what rpm stall should i use thanks for any input and Happy Holidays. sorry need reccomendations on roller rockers thanks
 
For roller rockers, I'd go for comp pro mags. Otherwise I'd get a set of 273 adjustable rocker arms (save a little $$ this way).
 
Use the smaller cc'd head for max quench effort and a 750 cfm carb. Choice is often by personal like of the carb. Be it a Holley or Edelbrock, what ever you like to work with is it!

The cam is small enuff to work very well with either carb. If your open to any carb or no exper. with carbs, a basic Holley 750 vacuum secondary carb will be just fine.

This combo if well tuned should be good for 400 HP.

Oh, on the rockers, I have a set of Comp Cams basic roller rockers in use. Inexpensive.
 
ok guy's another ? will any of these other heads like the J, X, or 587 get me the HP i want as the eddie heads would i dont care if iron or not just want the performance thanks guy's
 
If you want max performance from an iron head, you'll need to get your hands on a set of w2s. W2s are the best iron heads for a small block mopars.
 
It would probably make 400-425 with a set up like you mentioned using a 60404 lunati/ede's/air gap and a 750dp. A 2.02 RHS iron X head would work great on that as well

W2's are great as long as you want to spend the money to port them cause they aren't really great OOTB and $$$ for rocker gear, special intake/headers.
 
The lesser the head, the more built up of other parts you'll need to have done. And a large cam becomes part of the program.

The production iron heads as cast can support 400 hp. The rest of the engine needs to punched up to the extreme side of the build while the heads remain stock, save the valve springs of course.

In order to get 400 HP from a stock production head, the cam must be a bit large and a well balanced and rounded build it is not.

Better flowing heads like a well prep'd set of RHS or Edelbrock heads will make that HP with a little cam, be super streetable that even ol'cranky grand-ma will drive it without complaint.

You already have enuff info from this thread, save up the money to get what is needed.
 
so all in all a a set of J,X,587, or any other head ported with big valves etc will not match a factory set of eddies reason i asked is you can find these heads with the work done all day long for alot cheaper then the eddeies
 
If you want a quench set up, then no the x, j heads don't cut it with the pistons you have.
 
ok so it sounds like the cam i want to use, you guys think it's a small cam? i will also be using 1.6 rockers which will bump it up alittle or should i go bigger cam with 273 rockers and if so any reccomendations on a nice cam i wnat it to be streetable and be able to run power brakes i want to build this right the first time and not have to upgrade later. you guy's have been great with all your help i really appreciate it.
 
Mopar SB Heads 3671587 2.02/1.60 Ported and Polished

found these on ebay any idea to how these would work compared to the eddies will they get me to the HP im looking for?
 
Hey guy's is this worth picking up and running on my setup or anyone interested in it

complete Weiand smallblock mopar tunnel ram setup. Comes with holley 9776 450 cfm mechanical carbs, linkage, and edelbrock air cleaners. Very clean and low miles. This setup sells for over a grand at summitracing. Asking $600.00
 
it's more for show than power in my opinion. Keep it simple. Good heads with an RPM or M1 manifold & a 750 Holley.
 
80fbody said:
it's more for show than power in my opinion. Keep it simple. Good heads with an RPM or M1 manifold & a 750 Holley.
Click to expand...

I agree. RPM intake with GOOD street heads will meet your power goals without having to go with a big cam. Go with EQ, RHS or well set up Eddys and 400hp is a given. It's also doable with ported factory heads and the 'small' cam. However, finding well-ported iron heads (or identifying well-ported heads rather than botched ones) takes a little experience. And those pistons really want an aftermarket closed chamber.
 
You must log in or register to reply here.
-

Back
Top