Post your 11/12 second 455 combos!

Post your 11/12 second combinations. Looking for some build ideas.

 

455+.030
stock rods w/ARP bolts
TRW stock style aluminum pistons, compression right at 10 to 1
67 430 heads, mild port work
Poston 113A cam (.491/.510 lift, 234/246 duration, 113 LSA)
SP1 intake
Holley 950HP carb
Headers

Cars weighs 4250 lbs with me in it. Trans is a 200-4R with a 2800 stall converter. Rearend has 3.73 gears.

Best to date is an 11.86 at 112 mph with a 1.59 60'

 

Phils combo is right on the money a GOOD 10-1 shortblock with Good ported heads and a good cam matched to the heads. should get you in the 11s every time. But everything has to work together. Its much harder than it sounds.

 

Not to hijack the thread but what rocker arm/pushrod combo are you using?

 

How about an 11 second combination from 1989 in a full weight 67 Skylark:

11.86 @ 115 MPH

• 3950 lbs with driver and fuel
• .030 over 455
• Ross 11:1 pistons (more like 10.5)
• Stock rods resized with ARP bolts
• Kenne Bell (ARP) main and head stud kits
• Balanced rotating assembly
• Tomlinson ported stage 1 street-strip heads
• GSCA Hemikiller cam
• Kenne Bell 1.6:1 roller rockers
• Elelbrock B4B intake
• Holley 4781 850 CFM carb
• Stinger S-4 igninition
• Kenne Bell 1 7/8" headers
• GSCA 2.5" alumanized exhaust
• GSCA 2.5" mufflers
• GSCA (ATI) 3500 stall converter
• TH 400 trans
• 3.55 12 bolt rear

Cheryl

 

Stock 1.59 rockers with adjustable pushrods from TAPerformance.

 

1972 buick skylark custom, full interior bench seat car,..

- 72' buick block-462
- piston deck height, .017
- piston quench, .037
- head gasket, steel .020
- Heads- 70' stage-1, ported, bowl work flowing 260-ish, 61cc
- Comp,.. true- 10:8-1
- crank - stock rebalanced with mallory
- rods, stock rebalanced, polished
- Pistons, speed pro, notched, 26cc, cast iron rings
- flexplate and balancer, factory and rebalanced
- Oil pan, stock no mods or baffle's
- Cam, Lunati- 240-250 @ .050, 537-525 on 112CL, installed 108 intake
- Intake, SP-1,port matched with some plenum work
- rockers, stock 69' 430, about 1;58 ratio
- pushrods, 3/8 adj.
- Carb, custom old holley 850 no air horn, flows 980
- Ignition, HEI- MSD, digital 6 box,- no retard set..
- headers, old Kenne-bell 1 7/8"
- Trans, 350 T, stock with shift kit, ATI 10" 3500 conv.
- Exh. full 3' flowmaster to the bumper
- Rear, 12-bolt, 3:73 gears
- Tires, 325-50-15 M/T drag radials, weld wheels all around, Big and littles
- Pump gas 93 oct., timing at 30* on the street,.. and 33-35*, with 3 gal's of 110 race gas and 93 oct. at the track...

- Best time;- 11:57 @ 115.2,... 60 ft. 1;57 to 1;63

--fun car to drive, Idles at 950 rpm... no power breaks....:Brow:

 

Sandys GSX

Stock short block plus .030
KB 118 cam
Iron stage1 heads with bowl work
9.7 compression
Iron intake
Iron exhaust from Jim Rodgers
Reworked 71 QJ
69 rockers
2800 converter
3.42 posi
2 1/2 exhaust with X pipe
12.7's et @106mph

Gary

 

Stock bore 455, pistons .010 in hole, blue felpro head gaskets, stg1 heads, .059 cc, scotty brown cam- 226-240 4 dgrs retarded, stock intake, 800 Qjet, ported manifolds with 2 1/2 exhaust, 10 inch TCI convertor, 3.90 ten bolt, 10.5 inch slicks, car weighs 3925. best time 12.00@ 111.0:Brow:

 

-11 to 1 short block, forged Ross pistons
-Straightline Performance solid lifter cam 276/282 .600 lift intake, .594 lift exhaust
-Ported iron heads 285 intake, 202 exhaust
-T/A roller rockers
-Ported T/A SP1 intake
-Proform 950cfm race carb.
-1-7/8" Poston headers
-Home built TH 400 with Tri-shield 9" converter

Engine has been in the car for 11 years, pulling it out this winter to put new gaskets on it and maybe switch over to aluminum stage 2 heads. Has ran a best of 11.18 at 121. Since then I've went back to the steel GS hood, front bumper and removed the electric fan and water pump. At the Cecil race I ran a best of 11.32 at 118.5, the car is currently 3825 lbs with me in it and a half tank of fuel.

 

1973 455 .040 over speed pro pistons, 2 miles in the hole, lol.
balanced w arp rod bolts
9.3 to 1 compression calculated.
73 heads small valve, bowls cleaned up
comp cam 230 236 506 506
edelbrock performer, grinded and painted red.
Dougs headers, 3" exhaust w x pipe
750 q jet off 70 GS 350 motor
crane electric conversion kit w 34 degrees total timing
t 400 tci saturday night special converter, hit at 3000 off the line, wow
3.42 12 bolt, mickey thompson drag radials 275 60 15, steel wheels all around
12.40 108 1.70 60 ft.
4080 lbs w me in it. complete stock suspension, air tires to 20 psi, loosen front end links, right side more.
Needs more fuel and carb.

 

70 GS w/455 +038
JE pistons true 10.5 to 1
TA /Crower steel rods
Lunati cam, .493/.525 lift 225/235 duration at .050
KB roller rockers
TA SE heads w/ mild port job
TA SP-1 intake w/Bigs 950 Holley & 1" spacer
Complete MSD ignition
KB Headers
TA aluminum oil pan, oil pump w/ spacer, stock timing chain cover
Turbo 400 w/10" JW torque convertor
12 bolt w/ 3.55 gears
HR Parts Rear anti roll bar & No Hop bars
Stock springs, 1 coil cut out of front
90/10 shocks up front

Engine dyno - 503 HP, 547 ft/lbs
Chassis dyno 366.6 HP

Best numbers, 1/4 = 11.77, mph = 113, 60' = 1.58 all at ~2000' elevation out here at Speedworld (RIP) (running 9X30X15 MT Slicks)

 

1968 skylark 3550 lbs
stock rear suspension with air bags in the coils, parts store rear shocks, 90-10 shocks on front, no sway bars
manual steering, stock power drum brakes
1972 riv 455 030 over with sealed power forged pistons, notched at home on a bridgport
decked to zero, stock rods with arp bolts, stock crank, balancer and flywheel, not balanced
72 heads converted to stg 1 valves and home ported
TA sp1 intake, holley 850,msd ignition, TA headers with full 3" exhaust
TA 290-08h cam, 3/8 adjustable pushrods, 430 rockers
th 400 with a very loose 10" convertor, flashes over 3500
12 bolt with 3:73 gears
first put together in 1996, raced weekly many years, replaced the rod bearings once, were not needed
lost 1 headgasket 2 yrs ago
the car is at the track 7-10 times a year, gets a few street miles, sits all winter in the trailer
usually runs 11.85 to 11.90 60ft 1.58-1.60, 1/8 mile best of 7.43 current spark plugs are at least 2 seasons old, the car has just been dead on reliable
I rarely work on it except to change the oil every 3rd trip to the track, always use shell rotella
15-40

 

470 rotating assembly by AMP
10.6:1 compression
Stock crank
6.8” Eagle rods
Diamond pistons
TA Girdle
TA stage 1 SE Cylinder heads Ported at AMP , 324/215
TA roller rockers
SPX intake
830 Mech. Secondaries , Quick Fuel Technologies carb
Hydraulic cam that was lying around , 240/260 @ .050 518/554 lift , installed at 110
Mickey Thompson headers , 2.5” exhaust with x-pipe and four mufflers
T400 with 3500 stall , 3.73 10 bolt and one airbag
Car is approx. 3900# with driver
First time at BG Last month , 11.259 @ 116.92 , 1.56 60’ 95.6 in the 1/8
Future plans include 3” exhaust with only two mufflers and possibly a 950 Holley .
I am very happy with the performance , only expected 11.50’s with the 2.5” exhaust and out of the box carb .

 

462 .030 over
9.4:1 CR
23cc pistons .020 steel shim hd. gaskets
stock rods & crank , balanced short block
ARP fasteners complete engine
Speed Pro K289 moly ring set
stg1 iron heads 260/190 @ .500
SP1 intake
950 carb AED 78/85 jet
Mallory dist 33* total @2400 rpm
1-7/8" headers -2-1/2" full exhaust
Scott Brown 235/250H12 .0505/.0488 lift camshaft
PTC 9.5'' convertor 3200 rpm flash
TH 400auto shift @ 5600 rpm
8.5" 10 bolt diff. 3.42 gearing
MT street radials 28" dia.
T/A No Hop traction bars
3910 w/ driver - best to date 12.14 @ 112.21 w/poor 60' of 1.83
TRI STATE RACEWAY IOWA 9/21/14
CAMPBELL AUTOMOTIVE

 

This still amazes me, Larry. All this AND 14 MPG... !!! lol Awesome. :TU:

 

'70 455 block .040 over, "zero" decked
Speedpro forged pistons 10.3:1 commpression
Plasma Moly rings
Stock crank .010 under
Stock resized rods
ARP all around
TA 290-08h cam
TA S1 SE ported heads (I forget the flow ..)
TA 1.6 Roller rockers
TA SP1 intake
Holley 1000 HP carb
TA SFI Flexplate
Innovative West SFI fluid Ballencer
TA 1 7/8" JetHott coated headers
TA 2.5" mandrel exhaust/walker UltraFlo's
FB (Freddy Brown) TH400 with HD Low gear planetary set...(2.75/1.57/1.00)
HR PartsNstuff rear anti-roll bar
Metco rear Upper/Lower control arms
Chevy 12 bolt with HD Eaton posi and Moser axles

Complete motor built and dyno'd by TriShield Performance

1969 GS400 Convertible with power windows - full factory weight/trim + some (Stereo ..etc) - 4,085 Lbs

With 3.08 gears / Loose 11" converter - 12.19 @ 110+ .. 14-15 mpg on highway if kept under 65 mph
with 3.31 gears / TriShield 9.5" converter - 11.93 @ 113+ 12-13 mpg on highway " " "

Best 60' 1.59 .. all passes on MT ET Streets 275/50/15

This build (motor and car setup) was for 99.9% street/highway use and that occasional once or twice yearly trip to the strip.
As I stated recently in an unrelated thread, I let my Mom drive it when she jokingly asked if she could (she's 78)

 

Another great example! Amazing how economic all this power can be.

 

455
.038 Wiseco Pistons
AMP ported Stage 1 heads
SP1 out of the box
Quickfuel 850
TA Headers
2.5 exhaust with X pipe
12 bolt with 3.73s
electric fuel pump
MSD 6AL
Daves Smallbody HEI

Autogear M22W 4 speed
28" slicks

11.87 @ 117
1.74 60'