[hal101]

my combo

400 .065 over
crank rod turned ofset to 3.79 stroke BBC bearing size and chrome plated
eagle rods 6.8"
ross flat top
comp cam 230/236 565/570 HR
#12 heads ported to 280 cfm by dave@ sd
rpm port matched to heads by dave
870 holley
hooker headers
2 1/2" pypes x pipe cross flow muffler
2500 stall th 350 3.36 rear

[chiphead]

I luv the 400. Fun, free revving engine.

'67 400 XU block bored .035". Decked to .008". Glyptol painted
'69 350 N crank cut 20/50 and balanced
'68 Front assembly
'70 455 GTO fuel pump.
Eagle 6.8" rods. Ross Pistons 4.150" dished for 9.3:1 and uses NOS-compatable ring pack and end gap. Floating pin.
670 heads ported 240/190, totally rebuilt, 995 springs, viton seals 1016 head gaskets, ARP head bolts.
RPM intake, Q-jet, 14" aircleaner
XE274 advanced 2*, Crower stainless 1.5 rockers, Magnum pushrods.
MSD billet ignition, 6A box, 12* Base, 34* at 3000.
BBC main studs, Milodon pan and tray, M54DS pump blueprinted. Hardened pump shaft
FM4040M 3/4 groove mains, Clevite BBC performance rod bearings
Hooker SCs, into 3" exhaust w/magnaflows dumped in front of rear axle
Shell 93 octane fuel.

Driveline: 2000 footbrake, 3200 Stall BTE converter. TH350 tranny with Trans-Go shift kit, and upgraded parts.
R/E: Ford 9" with 3.90 gears and detroit locker. Moser 31 spline axles.

Car: '67 LeMans street/strip beater. Race weight of 3600 lbs. Street legal, decent street manners.

Performance: (with 3.23 gears in 8.2") 1.92 60 ft, 8.22 @ 84.4 in 1/8. Shooting for the 7s with Ford rear and more traction.

Thanks for all the help

chip

[krisr]

-'65 389 Block bored to 4.122"
-TRW 400 std bore Forged Pistons
-SCAT H-Beam 6.625 rods w/ARP bolts
-#16 Heads with Ferrea 6000 series valves (inlets cut back to 30°) and standard length, 60405 valve springs and Yella Terra 1.65 full alloy roller rockers. Intake gasket matched to FP1233 gasket, exhaust was just cleaned up with a 120grit sanding scroll
-Custom multiport fuel injection with 42lb injectors & 78mm LS1 throttle body, MSD Probillet Dist, MSD 6AL with Megasquirt controlling fuel and spark
-Custom headers, 1 3/4" primaries into a 3" collector, ceramic dipped, 2.5" stainless from collector to tailpipe with X-pipe.
-Twin Turbo Toyota Supra 5speed gearbox w/Hayes 2700lbs pressure plate 10.5"
-Ford 9" LSD, 3.5 gears rolling on 16x8" rear rims (255/50R16) and 16x7" up front

Prior to injection, headers/exhaust, clutch upgrade and the latest cam it had made ~280rwhp with the clutch slipping. Pure street car too.

[form406]

see below...ive had two 462's as well...soon to rebuild another...there are actually many 400's out there very reasonably priced...

[A1Judge]

70 WS Ram Air III .030 Over
TRW 2262 Pistons
Resized stock rods with ARP bolts
Clevite 77 Bearings
Cloyes Roller Timing Chain and Gears
Rotating Assembly balanced
Crank cut .02 on the mains and rods
#12 Heads Cut .010
Summit 2802 Cam
Isky lifters
Crane Dual springs with new retainers and keepers
Ferrea Stainless valves
Comp 1.52 Roller tip rockers
Stock Intake and Q-Jet
Ram Air manifolds
M20 4-Speed
3.55 Posi rear

Maybe not the fastest thing around bu tI was going more for a "stock" type build as it is the numbers matching motor for my '70 Judge. But it does get up and boogie!

[slowbird]

There are a lot of nice combos it looks like. Not many have ets for them. I assume that most of you guys have not made it trips down the track then?

[goatasaurus rex]

slowbird,

i will give you my combo later today when i have some more time.

[KS circutguy]

• Pontiac 400 CI block 1973 2 bolt main
• Bored +.060 over to 411.6834”
• Block torque plate bored and honed
• Mains align honed w/ARP main studs installed
• Crank is 73 400 Nodular iron turned .020-.020
• Block decked to .00 deck height
• Brass freeze plugs installed
• Pistons-Ross Custom racing flat tops +.060
• Rings Sealed Power Total Seal Classics w/ductile iron moly coated top ring each ring file fit to bore
• Rods-Eagle steel 6.625” long ESP H beam w/ ARP bolts
• Federal Mogul Trimetal full groove main bearings +.020
• Clevite 77 rod bearings +.020
• Clearance at .0025 mains and .0025 at rods
• Complete assembly balanced
• Canto road race oil pan installed with crank wiper and Melling pump
• Heads 6X Pontiac w/bronze guides, new hardened seats stainless steal valves, port matched, ported in bowl area, and short side radius, w/ exhaust cross over filled
• Heads milled .070 to achieve a 9.2 to 1 compression ratio
• Competition Cams # 995-16 springs steel retainers w/10 degree locks
• Competition Cams roller rockers 1.52 ratio, Crane Cams cool nuts
• Ultra Dyne solid lifer cam duration @ .050 Intake 243 - Exhaust 251 and Lift @ Intake .518 @ Exhaust .520 w/1.53 rockers Lobe center is 112 installed 8 degrees advanced to 103.5
• Flow Tech (by Holley) ceramic coated headers 3” collectors flowing to 2-1/2” X pipe and Magna Flow mufflers
• Edelbrock Performer RPM manifold w/ Carb Shop Custom Q-jet carb
• MSD billet distributor w/ 15 degrees initial 36 total, MSD 6AL box with rev limiter and MSD Blaster SS coil
• Custom built Continental tight 10” 3200 stall converter
• Turbo 350 trans by Hughes
• B&M Quicksilver shifter
• 8.5” 10 bolt with Auburn posi and 3.90 gears, Moser axles 28 spline
• Southside lift bars
• NOS Cheater nitrous system adjustable from 125HP-250HP
• Aeromotive fuel pump, Comp Engineering fuel sump, flowing threw Aero @ Russell hoses to Aeromotive regulator
• Paint is code #29 GM Dark Blue metallic
• All work performed by owner except machine work by Archie S. at Somers machine shop, and Karl Boe for the tuning help!
Best so far on motor 12.98 @ 106.75 @ 4100 lbs. and real street tires.

[James408]

My combo:

1970 Ram Air III block, 4 bolt mains bored .040 over
#62 heads 72 cc, Stainless 2.11 intake 1.77 valves
Piston's, TRW Forged
Compression: 9.98:1
Rods: Stock, resized
Crank: Stock: cut 20/20
Cam: Comp Cam 274 XE, installed "straight up"
Intake: Edelbrock Performer RPM
Carb: Holley 3310 750 w/vac. sec. "quick change secondary spring kit"
Dist: Mallory Unilite mechanical advance
Headers: 1 5/8 dynomax headers
Exhaust: 2.5 inch exhaust with Dynomax Ultra Flo mufflers
Oil: Havoline 20w50 (experimenting with royal purple right now)

Trans: Turbo 400 with shift kit, 2800 stall
Shifter: B&M Star shifter
Rearend: chevy 12 bolt posi with 4.10 gears

[77TA406]

1977 Pontiac 400 +.030. Bored and honed with torque plate, align honed.
350 Pontiac crank cut .010-.010
Stock rods--resized, polished, shot peened, ARP bolts
TRW 2262 pistons..dished an additional 6cc...moly rings
Comp Cam....222/228 dur @ .050....464-.474...110 lsa installed @ 106
HS 1.5 roller rockers
Comp Cams magnum push rods
2.11 1.77 undercut stainless steel valves
Double roller timing chain
1968 # 16 heads...unported but cleaned up..71 cc
Pistons .015 in the hole
Performer RPM manifold
Cliff Ruggles Q jet...totally awesome
Folwtech 4 tube 1 /8 headers
3" exhaust..Flowmaster Delta 40 mufflers
MSD Digital 6 ign...MSD Blaster HVC coil
Carter P4070 electric fuel pump
Car is a 1977 Trans Am...4 spd...3.73 gears
ET'S are terrible at 13.90 with hard as rock Good Year tires. 60' times have never been less that 2.30 and once were 3.66 (ugh), but I still ran 103.7 mph
shifting AT 5200 rpm.

[77TA406]

Engine is also balanced and blueprinted
Clutch is a Centerforce CFDF

[black_bird]

Well, mines nothing special. Bought the shortblock used just to get my car running.

400 .030 over
XE274 Cam
RPM Intake
Stock #48 heads
TH400 W/10" Continental converter
12-Bolt W/3.90s
275/60-15 M/T DRs
1969 LeMans, still all metal

Best time so far 13.30 @ 100.something W/ 1.84 60ft

I think I can get a little more out of it...

These are soon to reside on the top side of it though:

[Z Code 400]

Originally Posted by Old Man Taylor

Z Code 400 – Great information, but I don’t feel like typing that much. Below are summaries of the 400’s I have run.

OMT,

True, but all my actual racing experience is with 427 and 429 Fords...Robert

[70 Lemans]

69 400 Block .030 over, eagle stroker kit, ported 87cc e-heads 305 310 cfm, port match RPM, 850 carb, comp cam Hydraulic roller 236/[email protected] 585/600 lift 110 LS with 1.5 rockers, butler timing chain, butler valley pan with pcv 3500 stall with 3.55’s gears. Will change to 3.73's Cars race weight is approximately 3800lbs

[Ryche400]

Damn, thats purty.....

400, standard bore, flat top 4 valve relief hyper pistons, Performer intake, Holley 750 vac secondary w/rear metering plate,Summit 2801, Comp Springs, Comp 1.52 Roller tips, 6x heads, Comp double roller chain, Carter high volume mechanical fuel pump. Hooker headers, 2 1/2 Slowmasters, 700R4/2500 stall. 3.23 gears. MSD ignition. 1980 (Turbo)Trans Am. Title says 2900 Lbs, but I doubt it...

Anyone care to take a guesstimate on HP, TQ??

[Will]

It aint a 400 any more if you stroke it...

[krisr]

Agree, 3.75" cranks only.

[slowbird]

70 Lemans that is a nice engine but it is no longer a 400 with a stroker kit in it.

[Doug Christie]

Here's a picture of my cross over.

[WARPed]

Here is my old 416ci combo

Block: 1970 Pontiac 400 + .060 over, zero deck height, 2 bolt mains with stud kit
Rods: Eagle 6.80” with 2.2” journals (bbc std.)
Piston/Rings: ROSS flat tops, 134gm pins, Total Seal Gapless
Balancer: TCI Rattler
Flex Plate: TCI
Bore/Stroke: 4.181/3.79
Heads: 72cc Edelbrock, 300/220cfm, 77cc chamber , cr 10.09, 2.11/1.77 valves, head stud kit
Pushrods: 9.350” .080” wall 5/16” cm
Intake: Edelbrock RPM, port matched only, 1” open spacer
Carb: Barry Grant Gold Claw, now called Race Demon 756-3020RT (875 cfm) box stock
Air Cleaner: Moroso 14" drop base with a 4" K&N element
Cam: UltraDyne roller 295/303 (262/270 @.050), .3883/.3883 tappet lift, 614/614 net lift with .026/.026 lash and 1.65 roller rockers
Ignition: MSD 6AL, MSD crank trigger, MSD 8981 programmable timing control and is sent through a gutted GM HEI
Exhaust: Hooker round port 2"x30” and 3.5" (9.5” long) collector headers, 3.5” to Dr.Gas ‘X’, 3” out to 3” Flowmaster 3 chamber mufflers and no tail pipes
Oil control: Melling 60psi oil pump, Canton oil pan


This combo propelled my 3600lb 69 GP to 10.80s @ 123mph.
other info: 9"/4.30 gear, TH400, TCI 8" 4200 converter, 14x32 M/T ET Streets
correction: I did not have a trans brake in the TH400 until I put the 467 motor in.
Note: went 11.30s /120mph 3750lbs, 12 bolt/4.11s, TH350 with GER 3800 converter (cheapie) and 28x12.5 M/T ET Streets, full 3" exhaust out the back using 3 chamber Flowmaster (no Dr.Gas X).