$325 Off

Flo-Tek 305-505 Big Block Chevy Complete Aluminum Cylinder Head, 320cc

$325 Off

#72255320

Flo-Tek 305-505 Big Block Chevy Complete Aluminum Cylinder Head, 320cc

Name: Flo-Tek 305-505 Big Block Chevy Complete Aluminum Cylinder Head, 320cc
Brand: Flo-Tek
SKU: 72255320
Price: 574.99 USD
Availability: Discontinued
Rating: 5 (2 reviews)

2 Reviews

9 Questions

Features hardened locks and retainers
Has high performance springs (.600 lift up to)
Head has an all-aluminon construction with a natural finish

Discontinued

This item is currently not available

Shop all Flo-Tek Assembled Aluminum Cylinder Heads

Product Summary

396, 402, 427, 454, 496, 502, Aluminum, Natural

Features hardened locks and retainers
Has high performance springs (.600 lift up to)
Head has an all-aluminon construction with a natural finish
Intake runner volume measures 320cc and exhaust measures 128cc
The rocker studs & Guide Plates are included and must be torqued during installation process

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Key Specs

Cylinder Head Style	Assembled
Material Type	Aluminum
Finish	Natural
Combustion Chamber Volume	133cc
Intake Runner Volume	320cc

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Need To Know

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855.313.9176

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Flo-Tek 305-505 Details

Specs:

2.250? Intake Stainless Swirl Polished Valves
1.880? Exhaust Stainless Swirl Polished Valves
320cc Intake Runners
128cc Exhaust Runners
133cc Combustion Chambers
Hi Performance Springs (.600 lift up to)
Positive Seals
Hardened Locks and Retainers
High Temp Exhaust Seals
Phosphor Bronze Intake & Exhaust Guides
Rocker Studs & Guide Plates included - must be torqued during installation process
5 Angle Valve Job
CFM Intake Short Runner at .600 322.4 CFM
CFM Intake Long Runner at .600 325.6 CFMCFM Exhaust at .600 223.0 CFM
Sold individually
Head Bolts: ARP-135-3703 (12pt) & ARP-135-3606 (6pt)
Head Studs: ARP-235-4303
Head Gasket: Fel Pro 1017-1 (4.500) & Fel Pro 1057 (4.630)
Stud Girdle: Harland Sharpe G1114 (7/16)
Intake Gasket: Fel Pro 1252-3 (320) & Fel Pro 1211 (360)
Exhaust Gasket: Raised Exh. Ports- Fel Pro 1404
Spark Plug: 14mm .750 reach, Recommended starting point Accel # 416
Head Bolt Torque Specs: 75 ft/lbs w/ oil. Coat head bolts and rocker studs with thread sealant.
Rocker Arm Stud Torque: 50 ft lbs w/ oil
Guide Plate: 3/8 Adjustable Dart #27001230

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CARB warning

Flo-Tek 305-505 Specifications

KEY SPECS
MFG. Part #	305-505
Brand	Flo-Tek
Cylinder Head Style	Assembled
Material Type	Aluminum
Finish	Natural
Combustion Chamber Volume	133cc
Intake Runner Volume	320cc

GENERAL
Exhaust Runner Volume	128cc
Combustion Chamber Volume Range	130cc - 139cc
Intake Runner Volume Range	320cc - 329cc
Exhaust Runner Volume Range	120cc - 129cc
CNC-Machined Runners	No
Spark Plug Style	Angle
Intake Port Shape	Rectangle
Exhaust Port Shape	Square
Intake Valve Diameter	2.25"
Exhaust Valve Diameter	1.88"
Exhaust Valves Included	Yes
Rocker Arms Included	No
Stud Diameter	0.44"
Sold in Quantity	Each

Ratings & Reviews

2 Reviews

Overall Assessment

Customers commend the excellent precision and workmanship of the product, highlighting its great value. Renowned for its practicality, it found suitable use in a '67 Camaro bracket car, resulting in the decision to purchase further units. The product surpasses competitors in quality and function, proving to be an admirable pick on the market.

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2 reviews

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Awesome product , great value

5.0

6 years ago

Nick

Rialto Ca

Verified

Machine work is spot on

Would Recommend

Would be buying another set for my wifes Camaro nice right o

5.0

7 years ago

Gordon keebler

Ocala fl

Verified

Using them on a 67 camaro bracket car

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

9 Questions • 9 Answers

Sort Questions

I have a bbc 482ci with a comp solid roller cam 660/int and 666 on exh, would these heads work on this motor.

by lukco

• 7 years ago

1 answer

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Are these open or closed chamber heads

by Kamon

• 7 years ago

1 answer

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Will this head work with the big mutha thumpr cam and perform good on the street for a street/strip application?

by kamon

• 7 years ago

1 answer

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Will stock length bbc push rods work if that's what I have now and are the valves longer than stock and are the exhaust ports raised?

by Ron

• 8 years ago

1 answer

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Will these heads work on 69 chevelle with a 396

by Robert

• 9 years ago

1 answer

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Is that price for a set? Or jus one?

by Mack

• 9 years ago

1 answer

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will these heads work on a Gen VI 454. Looking for more towing power over stock heads.

by duke

• 9 years ago

1 answer

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will this fit a big block chevy gen v also what would the shipping be on a pair. many thanks chris

by chris

• 11 years ago

1 answer

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im thinking on buying these for my 1971 monte carlo with the stock 402 big block will they work will they work i have an edlbrock pro performer 2.0 intake with 600 edel carb whitch im replacing with a 700 if they fit what would be a good cam ,stall converter and gears should i go with that would be a good match for the heads i dont plan on going to the drag strip i just want a fast good sounding gas friendly machine that has good driveability i wanna hear my true sound of my flowmasters

by taco

• 11 years ago

1 answer

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9 of 9 questions shown