Unported head quickness?

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rumblefish360

I have escaped the EVIL Empire State!
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OK crew. Another idea I had. This is, kind of like a , "Build it on the cheap" thread. As the title states, unported heads save a lot of money.

Big block, small block, /6ers as well, factory iron heads preferred, aftermarket heads welcomed. Though aftermarket heads are a little bit of self thread defeating purchase, I guess, if ya ain't got any heads, you'll need to get some, so, they might as well be added in. :thumbrig:

"How fast have you gone with "UNported heads?"

Not your buddy, not your neighbor, not your Ma'am, well, maybe...LOL

Seriously, list the combo, what you did to the engine, and the rest of the goodies in/on the car that get you there. Dead stock engine? Let'em know. Rebuilt, tell us the parts! Stock carb'd? Let us know. Exhaust manifolds, state it! Give up the goods and help a fellow MoPar guy pound some pavement or budding racer get going.

Engine and parts;

Trans/converter

Rear gear and tire size

Suspension

Light weight parts
(or missing parts)

Cars weight

E.T. / MPH
 
I'm running a 416 ci small block, w2 econo heads unported, 9 to 1 comp. ratio, 750 hp carb .550 lift solid cam, four speed, 4:30 gear w/ 27" tall tire, super stock springs, all steel, cars weight is 3560 w/me in it, best time so far 12.2 @ 115 mph.
 
380HP 360 Mopar shortblock with stock 340 X heads,from Aerohead, 2.02/1.60, no work done. 904 w/8" converter. 4.56 D60 with 29.5 slicks. Car all steel, 3100# or so. 11.81 @113 mph, shift @ 5800 on pump premium gas.

CalTrak suspension. Leaves @ 2700 rpm, 1.58 60', 7.45 in 1/8 @ 90 mph.
 
70 340, rebuilt .030 with KB pistons, aprox 9 1/2 to 1 compression, stock 1:88 vave J heads, no porting, std valve job, racer brown .510 hyd cam, strip dominator intake, 750 DP holley, 904 with 10" GER convertor, 4:56 gear, 3100 lbs street/strip setup, 8.11 at 88 MPH in the 1/8th mile.
 
friends 71 Mustang Mach 1, me driving. 351C 2v heads 4bbl offy 360 intake, Holley 3310, Erson Hi-flow 2 cam, 1 5/8 blackjack headers and 2 foot glasspacks, 3.00 open 9 inch FMX trans stock convertor. 12 inch wide tires. 13.67 at 106. Dog off the line but picked up pretty good. His 4V heads were slower but could have used alot more gear. Never clocked my '68 340'd '65 Barracuda back then but I would regularly beat a stock 340 Duster in the 1/8 street race where neither of us wanted to go faster than about 70...and that was with a 7.25 SG rear, maybe 3.23 gears
 
OK crew. Another idea I had. This is, kind .

Engine and parts;

Trans/converter

Rear gear and tire size

Suspension

Light weight parts
(or missing parts)

Cars weight

E.T. / MPH


My '72 Valiant 4-door has a BONE STOCK 360 Magnum (except for a mild, Hughes cam, heavy-duty pushrods and valve springs; Crane roller rockers,) low-mileage engine out of a 1998 Durango, to which I added an AirGap-style Chinese intake manifold and a set of TTI headers ands a Vortech centrifugal blower.

It runs mid-11s at about 118 mph with 3.55 gears and a stock, 318 converter; 1.81 60-foot, on a cold track (no bite). It weighes 3,300 pounds without my considerable arse in it, and runs on some worn-out, T-A Drag Radials (spinning all the way through low gear,) with spring clamps on the front portion of the rear leafs, and an air bag on the right rear...

That's almost 2 seconds quicker than it ran with NO blower, 340 exhaust manifolds, and an M-P hi-rise intake.
(13.35 best @ 102, un-blown.)

It feels like a whole different car, with 10 pounds of boost. Stock pistons and head gaskets don't seem to mind the boost, although I did buy an MSD boost-retard (Boostmaster) and a Snowperfornance "Boostcooler" methanol injector, set to start spraying at 3 pounds of boost. No detonation that I am aware of.

I know that rhis thread was not supposed to be about supercharging, but I thought that maybe some folks might be interested in another route to power, with un-ported heads.

Here's the chassis dyno sheet for this build, and a picture of the car it's in:

View attachment image0-3.jpg

View attachment 100_3093-1.jpg
 
Bill, as far as adding a supercharger goes, well, it may not be a budget item, but a bolt on it is and a simple one. (Most of my reasoning I like them.)
Considering the big picture, I think it is a good addition.
The flip side on not doing a simple supercharger bolt on and getting the car fast is of course the expense of gears converter etc... Which may not be as expensive, but could as well be more expensive. A lot depends on how fast your going. 14 second cars require little while 10 second require a lot more in the chassis and drive train.

Keep the replies coming guys! Thanks.
 
I guess I should add mine. I'll go back to the last ride, the '74 Duster. While a swap of engines requires a few more bucks with engine mounts and a radiator upgrade, a shortened driveshaft and rear size to go up one for any serious performance usage......
Many still came stock with a 318. So if you have a 318 Duster and wonder what you can do for a pick me up in performance, try this one out.

A bone stock used '79 - 318 was the base. Bolt on parts were;

A 600 cfm carb
Edelbrock LD4B (Dual plane discontinued long ago)
Hooker headers into a Jegs 2-1/2 exhaust

I added a new timing chain to the cam, springs and lifters. It was a Crane Cams grind @ 272-284 (@ 050 - 216-228) w/.454-.480 lift on a 112 c-line.
The 318 heads were just cleaned up at home. Running the stock 1.78 - 1.50 valves.

I used an electric fan
The car was (Upgraded to a ) 8-1/4 with a 3.23 sure grip equipped gear set on stock size tires stock replacement shocks on ESPO 1 inch over bend springs.

This combo, untuned at ATCO ran a 15.14 on a cold Nov. day. @ 89 mph with some tire spin. A bit of tuning, yours should run into the 14's no problem.
 
Well Bill I try to be interesting... if not entertaining...... LOL! :eek:ccasion:

mullinax95, thanks.
 
1965 plymouth belvedeere II weighes 3500 with me in it.
73 440 0.030 over ross 12.5.1 dome pistons. but only 11.1.1 with 84CC head
stock steel forged crank
eagle rods
Out of the box edelbrock 84 cc performer RPM heads
mopar 312/590 solid cam installed at i think 104
indy 1.6 roller rockers
mopar M1 tunnelram box stock edelbrock 750 carbs
tti 2x3-1/2 headers

727 with 5600 stall
dana 60 with 4.56 gears
M/T 31x10.5x15W slicks
ran 10.50 at 126 in the 1/4
6.60 at 102.8
1.41 60 foot
like a dumb *** i sold it because of my EX wife
here is a pic of the car.
damn i miss that car.
thanks Mopar65

View attachment DSCF0001.jpg
 
71 318, factory forged crank, factory bushed rods, cheapo rebuild kit from Northern, cast piston nearly .110" in the std hole(7.9-8:1), factory 318 heads cleaned up at home (wire wheel), Crane Energizer cam .454 .454 216 @.050", Edelbrock Performer 318/360, Holley 650 DP Spreadbore (Jets 67 front/89 rear) 1inch phenolic spacer, MSD Blaster2 coil, Accel superstock wires, converted to electronic ignition w/stock ecu, timing at 32 total, 904 w/B&M shift kit, factory convertor(stalled 1800), 8 3/4 w/cone-type posi and 3:55's, cheap Summit headers.
Car: 71 Swinger, gutted interior excluding bench seat and B&M Megashifter, no heat/air/radio. Fiberglass front fenders.
13.90's at St.Louis. 8.90's at Coles County in Charleston,IL.
Not bad for a 318 and a 18 year old at the time :)
 
360, J heads, XE268H, LD340, Holley 750DP, Dougs headers, MSD ignition, 904, 2500 hughes converter, 7 1/4" 2.73 gears, 245/60/14 BFG TA radials. Dyno'd at 345hp/395-400tq.

Wt 3250

Ran 14.20 at 103.7-104 in Las Vegas with no tuning change to the carb, stock jetting. Car was babied off the line, 2.20 60's. If the car could leave well it's capable of high 12's even at that elevation.
 
My old engine - 318 with a 360 crank (349 cui) - Unported 360 587 open chamber heads with 1.96 tulip valves, skimmed flat tops, Comp M282S retro solid, 1 5/8 headers, twin 2.5" system, 3.89 gears, 27" tyre, 3500 converter, 3650 lb A body,

13.24 @ 105.5mph on road tyres (Firehawks)
 
I will let you know. Still on the engine stand:) 360 roller, EQ heads, kb107, Zero deck, 10.1:1,scat rods, balanced and not blue printed:)904 with 22k stall, 3.23 gears, 225/60/15 street tires, no idea on the cam yet.....any help with the cam would be MUCH apreciated:) Strictly a street car. looking for a good performance/street cam. Allmost forgot, Doug's headers with H pipe through 2 1/2 pipes.
 
Well Bill I try to be interesting... if not entertaining...... LOL! :eek:ccasion:

mullinax95, thanks.



Well, if you're going for "interesting," I think what Tom Wolfe did with his '70 Dart, initially, was QUITE interesting, because of its unusual methodology.

He took a nearly STOCK slant six, added a 4bbl and a junkyard turbo and ran 12.95 @ 105 mph with it.

Yes, he used an UNPORTED head; with those tiny, stock valves, and probably 8:1 compression... in a 3,300-pound car.

He based this "build" (if you could call it that; he didn't do much "building"... never had the head or the pan off...) on a used Buick turbo he pulled out of a junkyard, and a 4-bbl manifold and carb... still had the small rear end with hiway gears, and stock cam and valvetrain...stock 904... and converter

Here's the Video: [ame="http://www.youtube.com/watch?v=pPe_vHwZsF4"]Slant Six Turbo 1970 Dodge Dart 1/4 Mile pass - YouTube[/ame]

I can't imagine that he spent very much at all on this effort... Sawed the stock exhaust manifold off and welded a turbo mount on it.

Stilll, he got into the 12's at 104mph...

This fits this thread, I think, since he did it with an unported head, and it's "AA Different."

Now, his car runs 11-flat into a 15 mph headwind @ 120mph, but with lots of TLC...

But, it ran pretty well, with an unported head, it seems to me.:glasses7:

That's my idea of "interesting." :)
 
STOCK bore and stroke 360, unturned crank, rods not even resized and stock rod bolts. Stock J heads with new 340 springs, stock rockers and original 1.88 and 1.60 valves lapped in. Crane #693802 camshaft kit. Crane double roller timing chain. MP electronic ignition with orange box. Stock 1971 340 intake and 1973 Thermoquad. Carb sealed to hood scoop with Moroso air pan. Stout 904 with factory high stall converter. Flow Tec headers with 2.5" dual exhaust with 2 chamber flowmasters and tailpipes. Car ran 13.99 first time out with 3.23 gears and slicks. Ran a best of 13.46 with swapped in 4.10s and slicks. Was in 1971 Dart.
 
Loving this thread idea, I hope to see some good 451 builds

Here ya go.

75 Duster, 3170 Race weight.
400/451
Ross FTs, 9.73 compression
BONE stock 906s stock valves & all the casting flash
Whopping XE284H cam, Ductile iron rockers, Isky springs
M1 Single, Swapmeet 750dp (71/82) Jets
1.7/8" Hooker FWs, 18" extentions
PTC 9.5" 4400 stall
4.10 gears, 28" MTs
Holley blue
MSD 6AL, MP Mallory Dist. Timing 18* int., 35* total
All in at 1800 RPM
Shifted at 5600, trapped 62-6300

Best of 10.91 @ 121 in Mineshaft air on a 1.51 60ft.
 
My two combos. I dont own this car anymore wish I did. 71 Challenger coupe. 440 stock bore forged replacement pistons, DC 284-484 cam, rebuilt 452 heads unported, Holley street Dominator, 750 Holley, 727 rebuilt, Turbo action rev manual vb, 3400 10 in convertor, 3.91 sure grip, 9x28 MT slicks, Hooker 1.78 Headers, This was a low comp engine regular unleaded. Best run 11.98 at 115mph, 12.00-12.20 car. sixty foot 1.66-1.68. My 68 Barracuda fastback 340, 030 over TRW forged replacment pistons, stock 340 heads spring seats and guides modified for dual springs, cam 305 comp magnum cam, stock 71 TQ manifold and TQ, Hooker 1.3/4 headers full exhuast, 727 rev man vb, 3400 10 in Turbo action conv, 4.56 sure grip. MT ET street 28-11.50-15 consistant 12.50 108 plus mph, 1.80 sixty.
 
Here ya go.

75 Duster, 3170 Race weight.
400/451
Ross FTs, 9.73 compression
BONE stock 906s stock valves & all the casting flash
Whopping XE284H cam, Ductile iron rockers, Isky springs
M1 Single, Swapmeet 750dp (71/82) Jets
1.7/8" Hooker FWs, 18" extentions
PTC 9.5" 4400 stall
4.10 gears, 28" MTs
Holley blue
MSD 6AL, MP Mallory Dist. Timing 18* int., 35* total
All in at 1800 RPM
Shifted at 5600, trapped 62-6300
Best of 10.91 @ 121 in Mineshaft air on a 1.51 60ft.

Thank you, thank you, thank you, thats exactly what I was looking for, it's for my 74 duster that im beging to make a racecar out of:thumbrig:
 
1972 duster 340, jerico trans, 5.57 gears, 9zx 30 slicks, stock unported heads, 1.88 & 1.60 valves, stock intake & T.Q. carb, 11.37 @ 115.50 mph, 1.49 60 ft, 3335 wgt
 
1969 Barracuda FB 340 standard bore....11 to 1 TRW, stock rods, J head with 2.02 installed. MP .557 cam, Holley strip dominator with 750 DP, MP electronic distributor with MSD 6AL, Hooker 1 3/4 Headers,

904 trans with Tranzact Brake, Turbo Action 8 inch Converter flashed to 4800 rpm, 5.13 gears with M/T 14 x 32 slicks. Car weight with Driver 2700 lbs.

11.15 @ 119 at Bakersfield in 1995....
Engine is still together in shed.....just missing rockers..
 
1969 Barracuda FB 340 +.060 ...12.5 to 1 TRW, stock rods, X heads with 2.02 installed. MP .590 cam, Holley strip dominator with 750 DP, MP electronic distributor with MSD 6AL, Hooker 1 3/4 Headers,

904 trans with Tranzact Brake, Turbo Action 8 inch Converter flashed to 4800 rpm, 5.13 gears with M/T 14 x 32 slicks. Car weight with Driver 2700 lbs.

10.90 @ 121 at Bakersfield in 1990
 
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