340 combos- horsepower and ets
- Thread starter 345man
- Start date
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BigStrok3
Mopar!
I have a 340 in my spirit. Best et was 12.29
My 360 powered Duster has gone a best of 12.21 @ 111 with open headers, 12.30-something with the mufflers on.
This coming Friday I'm going some for T&T, and I'm hoping to better those numbers... signifigantly.
This coming Friday I'm going some for T&T, and I'm hoping to better those numbers... signifigantly.
MikeL, you fail to mention you did this with that small little bump stick didn't you?
AdamR
Big Member
* 1973 340 block
* decked to +.020 deck height(pistons above deck)
* bored .030 over
* Ross flat tops with max weight removal option*** and .927 pin bores
* B&B tool steel wrist pins, 2.500 X .927 X .090 wall(piston and pin 525g)
* OE rods bushed to .927, fully polished, resized, lightened, ARP bolts
* OE steel crank( reground, strokes equalized, indexed)
* Milodon deep pan
* Melling oil pump
* double roller timing set
* Crower 262/265 @ .050, .575/.585 solid lifter cam
* Crower lifters
* ported 587 heads with MP 2.02/1.60 valves, milled for true 11:1 CR
* bronze guides and hardened exhaust seats
* Crower dual springs
* Comp 10deg retainers and machined locks
* Edelbrock Victor intake, gasket matched, mild plenum mods
*HVH 1" spacer
*Profrom 750
* Harland Sharp 1.5 roller rockers and HD thick wall shafts
* Crane pushrods
* MP moly coated fuel pump eccentric
* MP OEM replacement 340 damper
Went 11.60 @ 115mph in a 3600lb B body
* decked to +.020 deck height(pistons above deck)
* bored .030 over
* Ross flat tops with max weight removal option*** and .927 pin bores
* B&B tool steel wrist pins, 2.500 X .927 X .090 wall(piston and pin 525g)
* OE rods bushed to .927, fully polished, resized, lightened, ARP bolts
* OE steel crank( reground, strokes equalized, indexed)
* Milodon deep pan
* Melling oil pump
* double roller timing set
* Crower 262/265 @ .050, .575/.585 solid lifter cam
* Crower lifters
* ported 587 heads with MP 2.02/1.60 valves, milled for true 11:1 CR
* bronze guides and hardened exhaust seats
* Crower dual springs
* Comp 10deg retainers and machined locks
* Edelbrock Victor intake, gasket matched, mild plenum mods
*HVH 1" spacer
*Profrom 750
* Harland Sharp 1.5 roller rockers and HD thick wall shafts
* Crane pushrods
* MP moly coated fuel pump eccentric
* MP OEM replacement 340 damper
Went 11.60 @ 115mph in a 3600lb B body
340sFastback
Well-Known Member
The best ET my Barracuda ever ran was 13.90 @ 100 mph at Cecil Country Dragway MD. It only did in on one run. Most of the runs were 14.0 range. I was running headers in to 2 1/4" exhaust with stock tail pipes and restrictive chrome tips, 3:23 gears, 600 Holley, stock intake, stock heads, stock reproduction cam, standard bore 340 with original pistons and valves, full interior car, spare and jack removed, street radial tires.
The last time I had it at the strip with 3:91s, stock exhaust manifolds, 2 1/2" TTI exhaust, 650 AVS, LD340 intake it ran 14.01 ET but it was missing on the top end. Later found out the dist. cap was cracked and the fuel pick up in the tank was still original and clogged up. All that is fixed and it runs hard but have not taken back to the track.
The last time I had it at the strip with 3:91s, stock exhaust manifolds, 2 1/2" TTI exhaust, 650 AVS, LD340 intake it ran 14.01 ET but it was missing on the top end. Later found out the dist. cap was cracked and the fuel pick up in the tank was still original and clogged up. All that is fixed and it runs hard but have not taken back to the track.
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