GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads- NEW-4TH DESIGN

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GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads

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    Market price: $1428.95, you save $29.00
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  • Shipping info

    We deliver worldwide and to almost all countries. Call us at 704-871-0721 to get help with large international orders and we can help manually check the shipping for you. MORE INFO BELOW in Shipping Info section.

  • Payment methods

    Accepted payment methods

  • Return Policy

    We accept returns for up to 30 days from the purchase date. To be eligible for a return, your item must be unused and in the same condition that you received it. More Return Info below. 

Product Line

Fast Burn

Assembled/Bare

Assembled

Chamber Volume

62 cc

Plug Angle

Angle

Intake Runner Volume

210 cc

Exhaust Runner Volume

78 cc

Intake Port Shape

Rectangle

Intake Port Location

Stock

Intake Port Raised Distance

0.240 in

Exhaust Port Shape

D

Exhaust Port Location

Stock

Exhaust Port Raised Distance

0.200 in

Intake Valve Size

2.000 in

Intake Valve Included

Yes

Exhaust Valve Size

1.550 in

Exhaust Valve Included

Yes

Valve Spring Included

Yes

Intended Camshaft Style

Hydraulic Roller

Maximum Lift

0.530 in

Valve Spring Diameter

1.480 in

Valve Spring Number

Single

Valve Spring Damper

No

Valve Spring Retainers Included

Yes

Valve Locks Included

Yes

Valve Seal Included

Yes

Valve Seal Style

Umbrella

Valve Seal Material

Rubber

Rocker Studs Included

Yes

Rocker Stud Size

3/8-24 in

Valve Guide Included

Yes

Valve Guide Material

Bronze

Perimeter Mount Valve Cover

Yes

Center Mount Valve Cover

Yes

Valve Seat Included

Yes

Intake Valve Seat Material

Steel

Exhaust Valve Seat Material

Steel

Valve Seat Finish

Machined

Combustion Chamber Finish

CNC Machined

Intake Runner Finish

CNC Machined

Exhaust Runner Finish

CNC Machined

Intake Valve Angle

23 Degree

Exhaust Valve Angle

23 Degree

Material

Aluminum

Color

Natural

Finish

Natural

Quantity

Each

Notes: Features raised runners, check Suggested Parts for proper intake manifolds. Exhaust port is raised .200 inch over the factory location.

These fully assembled, CNC-machined aluminum Fast Burn cylinder heads from Chevrolet Performance are designed for 1958-2000 283-400 c.i.d. Chevy V8s. They quickly and completely burn the air/fuel mixture, ensuring higher cylinder pressure and more power. No additional porting is required--Chevrolet Performance Parts' cast-ported technology gives these heads maximum performance right out of the box. They're drilled and tapped for Vortec and raised port manifolds, they accept flange-mount or centerbolt-style valve covers, and will support in excess of 500 HP.

    • Weight
      24.1 lbs
    • SKU
      GMP19417592
  • Manufacturer
    GM PERFORMANCE PARTS

Product questions

  • Stuart McDade
    Apr 6, 2023, 18:00

    Are these Nascar legal for Late Model Stock ???

    Administrator
    Apr 7, 2023, 18:12

    YES THEY ARE A DIRECT REPLACEMENT FROM GM FOR THE 604. THANK YOU.

Customer reviews
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Products typically ship out between the same day and 1-3 days. Depending on the time/day ordered and the product type. Some products are made to order to spec and will ship once built. Feel free to call us at 704-871-0721 if you have any questions about shipping. Also call us if you are ordering large items like race car bodies as those are hard for the freight system to calculate sometimes and it will overestimate. Thank you.

We accept the following payment methods:

Accepted payment methods

And now Venmo & PayPay Credit

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. If the return is not based on a mistake on our part, a 15% restocking fee will apply.

Several types of goods are exempt from being returned. We also do not accept products that are hazardous materials, flammable liquids, or gases.

Additional non-returnable items:
* Gift cards
* Downloadable software products

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer. *Special cases might be returned to the manufacturer*

There are certain situations where only partial refunds are granted: (if applicable)
* Book with obvious signs of use
* Any item not in its original condition, that is damaged, or is missing parts for reasons not due to our error.
* Any item that is returned more than 30 days after delivery

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next, contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at glnmaurer@circletracksupply.com.

Sale items (if applicable)
Only regular priced items may be refunded, unfortunately, sale items cannot be refunded.

Exchanges (if applicable)
We only replace items if they are defective or damaged, or if we made the mistake.  If you need to exchange it for the same item, send us an email at glnmaurer@circletracksupply.com and send your item to 304 5th Creek Road, Statesville, NC, 28625, United States.

Shipping
To return your product, you should mail your product to:

CircleTrackSupply.com
304 5th Creek Road, Statesville, NC, 28625, United States.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.