I have a 460 that i just bought and i plan on making it a performer motor or the mud races.. i am looking to crank out a little over 600horse with out using nos. so i am looking to find double spring valves. i am using the original heads or do i need to upgrade to something different to use performance valves. i am using roller rockers. pistons.. they are going to be flat top. also am not boring anything out. but i am also looking for a .500 lift cam or anything bigger. if i go bigger how do i shim everything to make it work? i just need some help. please help me asap because i plan on getting this put together soon i am using a NON-EGR aluminum 4 barrel intake for it as well with a 800cfm carb

 

you need to speak to a reputable engine builder in your area. that motor will need torn down and inspected before you try and achieve those kinds of numbers. you would be foolish to think you can just slap it together run it hard, you will end up with a huge pile of parts on the ground from the motor letting go.

i also recommend you asking this in the engine build forum.

 

alright thanks for the help. yea im working on getting stuff inspected (block, crank, heads, main caps)

 

I would also recommend having the motor balanced and consider aftermarket heads.

 

Ford Cobra Jet heads

 

VIA-460FORD.COM
275-300HP 460ci

Intake System:

Holley 600-750 vacuum secondary
Edelbrock Performer (non-RPM) Intake Manifold

Cylinder Heads:

Heads can be D0VE or D3VE
(No Port work. Just good 3 angle valve job.)
Intake valve size 2.08
Exhaust valve size 1.65
Stock rockers.

Short Block:

Comp Cam Custom Spec Hydraulic flat tappet cam or equivalent
Based on the Xtreme Energy Hydraulic Series
Intake Lobe 5437 and Exhaust Lobe 5430
(Specs:240/250 adv., 196/206@.050, .476/.479 lift, 112 LSA)
Compression around 8.0:1
Stock crank
Stock rods
Standard volume oil pump
Stock oil pan

Exhaust:

Passenger cast-iron manifolds to dual 2.25" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

87-octane. Horsepower peak at 4,100 rpm. Keep redline to 5000 rpm.

300-325HP 460ci

Intake System:

Holley 750 vacuum secondary
Edelbrock Performer (non-Rpm) Intake Manifold

Cylinder Heads:

Heads can be D0VE or D3VE with mild port job
(315-ish/180-ish cfm @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Stock rockers.

Short Block:

Comp Cam Custom Spec Hydraulic flat tappet cam or equivalent
Based on the Xtreme Energy Hydraulic Series
Intake Lobe 5430 and Exhaust Lobe 5232
(Specs:250/268 adv., 206/218@.050, .479/.493. lift, 112 LSA)
Compression around 9.0:1
Stock crank
Stock rods
Standard volume oil pump
Stock oil pan

Exhaust:

Passenger cast-iron manifolds to dual 2.25" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91 octane. Horsepower peak at 4,500 rpm. Keep redline to 5500 rpm.

325-350HP 460ci

Intake System:

Holley 750 vacuum secondary
Edelbrock Performer (non-Rpm) Intake Manifold

Cylinder Heads:

Heads can be D0VE or D3VE with mild port job
(315-ish/180-ish cfm @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Stock rockers

Short Block:

Comp Cam Custom Spec Hydraulic flat tappet cam or equivalent
Based on the Xtreme Energy Hydraulic Series
Intake Lobe 5430 and Exhaust Lobe 5232
(Specs:250/268 adv., 206/218@.050, .479/.493. lift, 110 LSA)
Compression around 9.0:1
Stock crank
Stock rods
Standard volume oil pump
Stock oil pan

Exhaust:

1.75" headers to dual 2.5" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91 octane. Horsepower peak at 4,500 rpm. Keep redline to 5500 rpm.

350-375HP 460ci

Intake System:

Holley 750 vacuum secondary
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

Heads can be D0VE or D3VE with mild port job
(315-ish/180-ish cfm @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Stock rockers.

Short Block:

Comp Cam Custom Spec Hydraulic flat tappet cam or equivalent
Based on the Xtreme Energy Hydraulic Series
Intake Lobe 5430 and Exhaust Lobe 5232
(Specs:250/268 adv., 206/218@.050, .479/.493. lift, 110 LSA)
Compression around 9.0:1
Stock crank
Stock rods
Standard volume oil pump
Stock oil pan

Exhaust:

1.75" headers to dual 2.5" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91 octane. Keep redline to 5500 rpm.

375-400HP 460ci

Intake System:

Holley 750 vacuum secondary
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

Heads can be D0VE or D3VE with mild port job and port match
(315-ish/180-ish cfm @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Stock rockers.

Short Block:

Comp Cam XE262H Hydraulic flat tappet cam or equivalent
(Specs:262/270 adv., 218/224@.050, .513/.520, 110 LSA)
Compression around 9:0:1
Stock crank
Stock rods with good bolts
Standard volume oil pump
Stock oil pan with windage tray

Exhaust:

1.75" headers to dual 2.5" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 6000 rpm.

 

400-425HP 460ci

Intake System:

750cfm Holley DP professionally calibrated for your application
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

D0VE heads with mild port job and chambers polished
(315ish/180-ish cfm flow @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Stock rockers.

Short Block:

Comp Cam XE262H Hydraulic flat tappet cam or equivalent
(Specs:262/270 adv., 218/224@.050, .513/.520, 110 LSA)
Compression around 9.5:1
Stock crank
Stock rods with good bolts
Standard volume oil pump
Stock oil pan with windage tray

Exhaust:

1 7/8" headers to dual 2.5" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 6000 rpm.

425-450HP 460ci

Intake System:

750cfm Holley DP professionally calibrated for your application
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

D0VE head with mild port job, chambers polished, and port match
(315-ish/180-ish cfm @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Roller rockers.

Short Block:

Comp Cam Custom Spec Hydraulic flat tappet cam or equivalent
Based on the Xtreme Energy Hydraulic Series
Intake Lobe 5443 and Exhaust Lobe 5203
(Specs:268/280 adv., 224/230@.050, .524/.544 lift, 110 LSA)
Compression around 9.5:1
Stock crank
Stock rods with good bolts
Standard volume oil pump
Stock oil pan with windage tray

Exhaust:

1 7/8" headers to dual 2.5" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 6000 rpm.

450-475HP 460ci

Intake System:

750cfm Holley DP professionally calibrated for your application
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

D0VE head with mild port job, chambers polished and port match
(315-ish/180-ish cfm @.600)
Intake valve size 2.08
Exhaust valve size 1.65
Roller rockers.

Short Block:

Comp Cam XE274H Hydraulic flat tappet cam or equivalent
(Specs:274/286 adv., 230/236@.050, .562/.565, 110 LSA)
Compression around 9.5:1
Stock crank
Eagle I-beam rods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 2.5" pipes with H-pipe. Good flowing 2.5" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 6500 rpm.

475-500HP 460ci

Intake System:

750cfm Holley DP Carb professionally calibrated for your application
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

D0VE heads with larger valves, port job, chambers polished and port match
(330-ish/190-ish cfm flow @.600)
Intake valve size increased to 2.19
Exhaust valve size increased to 1.76
Roller rockers.

Short Block:

Comp Cam XE274H Hydraulic flat tappet cam or equivalent
(Specs:274/286 adv., 230/236@.050, .562/.565, 110 LSA)
Compression at 9.8:1
Stock crank
Eagle I-beam rods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

91 octane. Keep redline to 6500 rpm.

500-525HP 460ci

Intake System:

750cfm Holley DP Carb professionally calibrated for your application
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

TFS street heads with mild clean-up
Roller rockers.

Short Block:

Comp Cam XE274H Hydraulic flat tappet cam or equivalent
(Specs:274/286 adv., 230/236@.050, .562/.565, 110 LSA)
Compression around 10.0:1
Stock crank
Eagle I-beam rods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 6500 rpm.

 

525-550HP 460ci

Intake System:

850cfm Holley DP Carb professionally calibrated
Edelbrock Performer Rpm Intake Manifold

Cylinder Heads:

TFS street heads with mild clean-up
Roller rockers.

Short Block:

Comp Cam XE284H Hydraulic flat tappet cam or equivalent
(Specs:284/296 adv., 240/246@.050, .584/.588, 110 LSA)
Compression around 10.0:1
Stock crank
Eagle I-beam
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 6500 rpm.

550-575HP 460ci

Intake System:

950cfm Holley DP Carb professionally calibrated
Weiand Stealth Standard Port Intake Manifold

Cylinder Heads:

TFS street heads with mild clean-up and chambers polished
Roller rockers.

Short Block:

Comp Cam 34-652-5 solid flat tappet cam or equivalent
(Specs:294/304 adv., 256/266@.050, .589/.615, 108 LSA)
Compression around 10.5:1
Stock crank
Scat H-beam rods
Block oiling mods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

91-octane. Keep redline to 7000 rpm.

575-600HP 460ci

Intake System:

950cfm Holley DP Carb professionally calibrated
Edelbrock 4150 Victor Intake ported

Cylinder Heads:

TFS street heads with mild clean-up and Victor port match
Roller rockers.
Stud girdle.

Short Block:

Comp Cam XR280R-10 solid roller street cam
(Specs: 280/286 adv., 242/248@.050, .657/.664 lift, 110 LSA)
Compression around 12.0:1
Stock crank
Scat H-beam rods
Block oiling mods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

100-octane. Horsepower peak at 6,000 rpm. Keep redline to 7000 rpm.

600-625HP 460ci

Intake System:

1050 cfm Holley Dominator Carb professionally calibrated
Edelbrock Dominator Victor Intake ported

Cylinder Heads:

TFS street heads with mild clean-up Victor port match
Roller rockers.
Stud girdle.

Short Block:

Comp Cam XR286R-10 solid roller street cam
(Specs: 286/292 adv., 248/254@.050, .664/.671 lift, 110 LSA)
Compression around 12.0:1
Stock crank
Scat H-beam rods
Block oiling mods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

100-octane. Horsepower peak at 6,200 rpm. Keep redline to 7000 rpm.

625-650HP 460ci

Intake System:

1050cfm Holley Dominator Carb professionally calibrated for your application
Edelbrock Victor Dominator Intake ported

Cylinder Heads:

TFS street heads with mild clean-up with Victor port match.
Roller rockers.
Stud girdle.

Short Block:

Comp Cam XR292R-10 solid roller street cam
(Specs: 292/298 adv., 254/260@.050, .671/.678 lift, 110 LSA)
Compression around 12.0:1
Stock crank
Scat H-beam rods with upgraded bolts
Block oiling mods
High volume oil pump
Deepened oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

100-octane. Horsepower peak at 6,500 rpm. Keep redline to 7200 rpm.

650-675HP 460ci

Intake System:

1150cfm Holley Dominator Carb professionally calibrated
Edelbrock Victor Dominator Intake ported

Cylinder Heads:

TFS street heads with port job and Victor port match
Roller rockers.
Stud girdle.

Short Block:

Comp Cam custom spec solid roller cam or equivalent
Xtreme Energy Street Rollers on intake and CR Series Rollers on Exhaust
Lobe 4879 on intake and Lobe 4682 on exhaust
(Specs:310/311 adv., 272/280@.050, .698/.683 lift, 110 LSA)
Compression around 12.0:1
Stock crank
Scat H-beam rods with upgraded bolts
Block oiling mods
High volume oil pump
Deepened and fully baffled oil pan with windage tray

Exhaust:

1 7/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

100-octane. Horsepower peak at 6,700 rpm. Keep redline to 7200 rpm.

 

675-700HP 460ci


Intake System:

1150cfm Holley Dominator Carb professionally calibrated for your application
Edelbrock Victor Dominator Intake ported

Cylinder Heads:

Kaase P51 heads with mild clean-up
Roller rockers.
Stud girdle.

Short Block:

Comp Cam Custom Spec solid roller cam or equivalent
Based on the High Torque .440 for intake and RT Series for exhaust
Intake Lobe 4240 and Exhaust Lobe 5203
(Specs:284/292 adv., 256/262@.050, .761/.743 lift, 108 LSA)
Compression around 12.0:1
Stock crank
Scat H-beam rods with upgraded bolts
Block oiling mods
High volume oil pump
Deepened and fully baffled oil pan with windage tray

Exhaust:

2 1/8" headers to dual 3" pipes with H-pipe. Good flowing 3" Magnaflow mufflers or equivalent.

Summary:

100-octane. Horsepower peak at 6,700 rpm. Keep redline to 7200 rpm.

700-725HP 460ci

Intake System:

1250cfm Holley Dominator Carb professionally calibrated for your application
Edelbrock Victor Dominator Intake ported

Cylinder Heads:

Kaase P51 heads with port job
Roller rockers.
Stud girdle.

Short Block:

Comp Cam Custom Spec solid roller cam or equivalent
Based on the High Torque .440 for intake and RT Series for exhaust
Intake Lobe 4241 and Exhaust Lobe 4135
(Specs:288/298 adv., 260/268@.050, .761/.753 lift, 108 LSA)
Compression around 12.0:1
Stock crank with aero and lightening mods
Scat H-beam rods with upgraded rod bolts
Block oiling mods
Block 4-bolted on center 3 caps
High volume oil pump
Deepened and fully baffled oil pan with windage tray

Exhaust:

2 1/8" headers to dual 3.5" pipes with H-pipe. Good flowing 3.5" Magnaflow mufflers or equivalent.

Summary:

100-octane. Keep redline to 7500 rpm.

725-750HP 460ci

Intake System:

1250cfm Holley Dominator Carb professionally calibrated for your application
Edelbrock Victor Dominator Intake ported

Cylinder Heads:

Kaase P51 heads with full race port job
Roller rockers.
Stud girdle.

Short Block:

Comp Cam Custom Spec solid roller cam or equivalent
Based on the High Torque .440 for intake and RT Series for exhaust
Intake Lobe 4245 and Exhaust Lobe 4137
(Specs:296/302 adv., 268/272@.050, .761/.753 lift, 108 LSA)
Custom pistons with compression around 12.5:1
Stock crank with aero and lightening mods
Scat H-beam rods with upgraded rod bolts
Block oiling mods
Block 4-bolted on center 3 caps
High volume oil pump
Deepened and fully baffled oil pan with windage tray

Exhaust:

2 1/8" headers to dual 3.5" pipes with H-pipe. Good flowing 3.5-inch Magnaflow mufflers or equivalent.

Summary:

100-octane. Keep redline to 7500 rpm.

750-775HP 460ci

Intake System:

1250cfm Holley Dominator Carb professionally calibrated for your application
Edelbrock Victor Dominator Intake with full race port job and plenum mods

Cylinder Heads:

Kaase P51 heads with full race port job
Roller rockers.
Stud girdle.

Short Block:

Comp Cam Custom Spec solid roller cam or equivalent
Based on the High Torque .440 for intake and RT Series for exhaust
Intake Lobe 4252 and Exhaust Lobe 4138
(Specs:300/308 adv., 272/278@.050, .761/.753 lift, 108 LSA)
Custom pistons with compression around 13.0:1
Stock crank with aero and lightening mods
Scat H-beam rods with upgraded rod bolts
Block oiling mods
Block 4-bolted on center 3 caps
High volume oil pump
Deepened and fully baffled oil pan with windage tray

Exhaust:

2 1/8" headers to dual 3.5" pipes with H-pipe. Good flowing 3.5" Magnaflow mufflers or equivalent.

Summary:

105-octane. Keep redline to 7500 rpm.

775-800HP 460ci

Intake System:

1250cfm Holley Dominator Carb professionally calibrated for your application
Edelbrock Victor Dominator Intake with full race port job and plenum mods

Cylinder Heads:

Kaase P51 heads with full race port job
Roller rockers.
Stud girdle.

Short Block:

Comp Cam 34-740-9 solid roller cam or equivalent
(Specs:313/319 adv., 275/284@.050, .806/.763, 110 LSA)
Custom pistons with compression around 14.0:1
Stock crank with aero and lightening mods
BME aluminum rods or equivalent
Block oiling mods
Block 4-bolted on center 3 caps
High volume oil pump
Deepened and full baffled oil pan with windage tray

Exhaust:

2 1/8" headers to dual 3.5 " pipes with H-pipe. Good flowing 3.5" Magnaflow mufflers or equivalent.

Summary:

110 octane. Keep redline to 8000 rpm.
<!-- / message --><!-- edit note -->

 

You can still use your stock heads. I prefer the D0VE or the later D3VE heads.

If you go with a big cam remember you have to watch how big your cam is cause you might have to change yer converter.


Also upgrade yer springs.

 

ok yea. I plan on getting a np205 tcase freshly rebuilt, transmission cleaned up and rebuilt then obviously the motor all redone. Which is better the DOVE or the D3VE heads? I plan on getting double valve springs. Would I need to bore any since im doing this all? to get the 625-650h.p.

 

People really prefer the D0VE heads if you can't afford aftermarket heads.
The D3VE are the smog head but this is the better make of the smog head.

The D0VE isn't a smog head.


You can bore if you like. Boring helps with compression since you widen the area.

It's up to you whether you want to have a bigger cubic inch 460.

 

oh ok. im mainly wanting to make this a ultimate mud truck is wat im doing but ok then i prolly wont bore at least not yet anyway.... should i get aluminum?

 

aluminum heads i mean

 

They are costly.

If I were you and you have the money. Do all that you want to do to it now, if you have in mind that you want to bore later-best do it now and get it out the way.