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#35512499224
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604, Beehive Valve Spring Style, 1.29" Outside Diameter
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855.313.9176Ineligible for Return
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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.
4.9
7 Reviews
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.
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
7 Questions • 8 Answers
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
View Answer
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
View Answer
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