With a .570" maximum lift, these Beehive™ Valve Springs from GM Performance are replacements for our GM 604 Crate engine. They allow big block engines to turn more RPM too. The unique Beehive™ shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life. Because of the unique Beehive™ design, the valve train can handle more RPM and more aggressive cam profiles.

Beehive™ Valve Springs
Replacement for GM 604 Crate engine
1.29" O.D.
1.085" Coil Bind Height
375 lbs./in. Spring Rate
1.25" @ 295 lbs. pressure
1.8" installed height at 90 lbs. pressure
Max Lift .570"
Set of 16

Ratings & Reviews

4.9

7 Reviews

Overall Assessment

Customers consistently commend the product for its reliability and quality, specifically noting that it performs as described and measures uniformly. Noted for its practicality, it meets their requirements effectively. It also stands out as superior to others in terms of suitability for LS based street motor builds and 604 crate motor springs, featuring impressive max lifts and exceptional RPM stability. Users agree that the product works as it should and fits perfectly, making it their preferred choice over competitors.

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4.9

7 reviews

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As described, all measured the same

5.0

7 years ago

Tim Pittenger

Bismarck, ND

Verified

As described, all measured the same

Exactly what we needed

4.0

7 years ago

Mom

Albion

Verified

Good

Would Recommend

LS6 Replacement Blue Valve Springs

5.0

7 years ago

Austin S.

Sealy, TX

Verified

Speedway has these listed as 604 crate motor springs, they are one in the same as LS6 Blue springs These have always stood the test of time in my LS based street motor builds. .570 max lift, 6500 RPM stable W/ hollow stem intake, sodium filled exhaust valves. .550 Max lift, 6400 RPM stable W/ Solid LS valves.

Would Recommend

Yes

5.0

8 years ago

SRT

North East, TN

Verified

I buy two sets of springs, check them all and use the best ones on a 604 crate Motor, so far I've gotten my best springs from Speedwaymotors

Would Recommend

Yes yes

5.0

8 years ago

Towtruck

Katy tx

Verified

Works just like they should

Would Recommend

work good

5.0

11 years ago

jim

wis

Verified

work good

Would Recommend

Springs fit perfectly

5.0

11 years ago

Bill8400

Undisclosed

Verified

Speedway is so easy to order from. My order was processed right away and I recieved it the next day very fast service. Excellent product.

Would Recommend

Showing 7 of 7 reviews

Questions & Answers

7 Questions • 8 Answers

Sort Questions

Will these work on world sportsman 2 heads.thanks

by Brian

• 7 years ago

1 answer

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Can I use the factory retainers/ lockers etc from my 604 with these springs?

by Nick

• 8 years ago

2 answers

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The details of the product (valve springs) are saying there good for big block Chevy eng yet the 604 eng is a small block eng is there a typo or do they work on both engine witch is slightly odd .

by Jason

• 9 years ago

1 answer

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Hello there !! I have a ZZ5 motor with heads part # 19300955, max lift of this head with the beehive springs that came on them is about 0.530, I need to know if I can install the # 12499224 LS6 beehive springs on my heads without any modification's. The camshaft I have has a 0.535 in. & 0.550 ex. lift. Please be able to answer this question !

by Ty

• 9 years ago

1 answer

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Will these springs work with SBC Vortec 350 (L31) heads, i.e. GM10239906? What is the max lift using these springs with the 906 head?

by Kurt

• 9 years ago

1 answer

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What is the inside base diameter of the spring?

by 72luv383

• 11 years ago

1 answer

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What retainers do the 12499224 springs require?

by Haywire6886

• 12 years ago

1 answer

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