my current short block set up is a std stroke eagle crank, eagle H beams & .040 12.5 pop ups, with indy heads being 75ccs it should net around 12.8 to 1, Im wondering if unported indy -1s will be too big for this level of engine,


track duty only no street use in a 1/2 chassi'ed duster around 3000lb tops, transbraked glide with 4000 or 5000 converter (I have both) 31 or 32" tyre with 4.56s

Iv got some parts together to later on screw a source 543 together and only want to buy one set of heads.

heres an old picture of it

why not if you have the off set rockers, correct push rods, intake valley cover ect. and a cam / converter to match Indy site says up to 540 cu in.

I am no "expert" but it sounds like to me that you may be stepping up in the near future to 540 cubes. I would go with the 440-1's now if the budget allows! That way you will be ready for the future! Good luck!!

Before I moved to the 493, I ran my unported -1's on a 440 with similar compression. first with the old .590 cam and then a scott brown solid. I run a 28tall tire with 4.30 gears. car liked RPM with the big heads on that motor. I shifted it at 6800 or so. Ran 10:20-10:30's.

I ran -1s on a .030 440 with similiar compression but small roller cam. Was able to get A-body into 10 teens @ 3200 lbs with leaf springs & 10.5 tire. I looked at same thing you are when I bought the -1s. Only wanted to buy heads once. They ran fine and allowed me "room" for growth with 500" +.

I do already have the blue 1.6 rockers & shafts with hughes hold downs, a set of manley -1 head bolts, indy push rods, 1009 gaskets, iv got a flat tappet here 256/260 on a 108,I have a 950hp series holley etc

I dont have a valley or intake to suit yet but thats no probs

I guess now its just a forgone conclution to go a set of -1s, foot brake mid low 10s is right where & want it to be.

My brother put a very similar engine together for a friend. Pretty much same shortblock. 263/267 Roller on a 110, 1000 cfm square flange, ootb -1's J&W's loosest rated 8" converter for a glide, rated at 6400, went 6100 with this combo!!
2700 lb. full chassis 68 Barracuda 4.56 gear, 9.26-145 best with only 1.35 60ft. Engine worked great from 5800 to 7000, but with the right converter and gear it ran hard.

my 3000lb is based on the current iron headed 440 & 727, steel hood & doors with glass and regulators etc.

forgot to mention I also have a source girdle & indy alloy caps,

low 10's sould not be a problem for you. i am at 6.6x in at 3340lbs and only 11-1 comp. with a 650 solid cam, ootb -1's

I think it will run good, I have a few diff engine sizes under my belt with the 440-1 heads, from OOTB to full cnc porting.
I think it will be in your favor to mill the heads .038-.040 or so and get the head volume down to 70cc or so. This is very conman, and leaves plenty for future milling.
Get the compression up on that engine means a ton. A friend (HillBilly Conquest) ran a similar engine one a 493 with flat tops, maybe 12.5:1, and then run the same engine same cam ect but now a stock stroke 440 with a set of Blob dome pistons which yielded 14:1 or so.
That engine was a animal. it was several tenths better than the 493. The cam he ran was the old Comp .690 roller, single plan Indy intake and old 9375 dominator.
Hope this helps.
I would be careful how I cam'd the engine. A solid roller with dur in the high 260-low 270's range, and as much lift as I could possibly get.
If the heads are Box stock, you will want to at least pull the valves and do some bowl work. There is a ton to be gained right there spending only minutes under each valve.
The engine with the roller mentioned before will want to shift at 7K or a tad higher. A 5000 flash converter would be minimal.

I am concerned that my KB oil pump may pump the sump dry at top rpms, its only a 7qt & the pump is like two pumps joined together

I'd re-think the glide. Think the combo would be better suited to a 3 speed.

I had the -1's on my car and the best et was 10.49 at 130

With my 915's it's capable of 10 teens with 6.40's in the 1/8th

Too much slow moving air in those -1's for me. What about the SR's and then take them to Max size later

with s/r's they still have the dog leg around the push rod pinch. later on Im moving towards a 540 & s/r's would be too small.

And why re-think the girdle?

No the powerglide.

The GLIDE has what gear set in it? A 2.08 first?
The torqueflight has a 2.45 and puts you up in the RPM a lot quicker and that will help with the oversize port volume.

My motor is a pig with the -1's and a 3 speed.
With the 915's it rev's like a small block

I know what your saying & thats why I thought unported -1s would be better, pretty sure my paper work says 2. somthing first (get back to you on that one)but a loose converter will see it into the rpms preety quick 7 with t/b & 4.5s Im sure it will react

Built a 440 for a friend.

Stock stroke, flat top piston, zero deck.
75 cc. chamber -1 head. 1000 cfm Holley.


Small Comp roller 580ish lift. 260ish dur.

4.56 gear. 3600# race wieght.
Ran a best of 10.50 @ 127.

Shifting at 6700 rpm.

yes, 2.08 1st gear

Heres a vote for getting them and putting on the current motor.
I put them on mine and peeled off 130 in my friends NB 2900 lb cuda. Only diff is mine is a 383 (2293's .585 275* ft).
Heads made a HUGE improvement, non optimalized, over some nice 906s.

I used a set of the aluminum -1s on my 30 over 440. I just did a mild hand port job and bolted them on. The cam was .620 intake & .600 exhaust with a Holley 850 carb in my Charger that weighed 2820 at the time. Powerglide with 1.96 low and 4.56 rear. Ran 9.5s to 9.4s at 140+.

Put them on my new 572 last year along with a little bigger roller cam and 1050 Dominator and ran 8.9s to 9.0s at 150.

Don't really think much of them but a good used set at a "right" price, why not?