World Heads
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Member
Joined: Nov 2001
Posts: 109
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From: Elk Grove, IL
World Heads
WIll the WOrld 305 Torquers add HP and Torque throughout my engines powerband, or will i lose some torque/HP at certain RPM's. WHat kind of power will it add?
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1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit
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1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit
Thread Starter
Member
Joined: Nov 2001
Posts: 109
Likes: 0
From: Elk Grove, IL
does pocket portin help at all?
------------------
1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit
------------------
1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I don't know how much research you've done on them, but I haven't seen anyone who tested or used those heads without a pocket port job.
Before I ordered mine, I asked World's tech if I should do anything about porting (saying I was thinking of following Standard Abrasive's guidelines). Their response was an endorsement of the SA method, but they said "concentrate on the bowls". I did the full SA job (myself) anyway, and am quite pleased with the results.
I did so many other things it's hard to say exactly what the heads themselves did, but I am sure the other mods would not have been as effective without the heads and/or porting work. Popular Hot Rodding did a TPI dyno test a little over a year ago, comparing stock 3-angle valve job heads to pocket-ported World 305's - they showed a 50 hp improvement with the heads alone (used long-tube headers and near-stock cam for both tests).
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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2300 stall TC. Ported World 305 heads, Crane PowerMax 2050 cam. ZZ3/4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster 80. 2.93 limited slip. Spohn SFCs waiting to be installed. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).
Before I ordered mine, I asked World's tech if I should do anything about porting (saying I was thinking of following Standard Abrasive's guidelines). Their response was an endorsement of the SA method, but they said "concentrate on the bowls". I did the full SA job (myself) anyway, and am quite pleased with the results.
I did so many other things it's hard to say exactly what the heads themselves did, but I am sure the other mods would not have been as effective without the heads and/or porting work. Popular Hot Rodding did a TPI dyno test a little over a year ago, comparing stock 3-angle valve job heads to pocket-ported World 305's - they showed a 50 hp improvement with the heads alone (used long-tube headers and near-stock cam for both tests).
------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2300 stall TC. Ported World 305 heads, Crane PowerMax 2050 cam. ZZ3/4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster 80. 2.93 limited slip. Spohn SFCs waiting to be installed. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).
Junior Member
Joined: Jan 2001
Posts: 83
Likes: 0
From: Abilene, Texas
Car: 1989 Formula - Red
Engine: 350 TPI
Transmission: 700 R4
Axle/Gears: 3.73 Posi
Yes, absolutely. A friend who needed a valve job and new valve guides recently put them on his Bird and got a nice top-to -bottom boost on his 305 TBI 5-speed car. I tried to talk him into letting me pocket port them, but he was pretty nervous about the whole deal going in anyway, and bolted them on straight.
Now he is kicking himself for not doing the pocket port, but he is thrilled with the results of the 305 Torquer heads.
Now he is kicking himself for not doing the pocket port, but he is thrilled with the results of the 305 Torquer heads.
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