Vortec L31 cylinder head
(Minor clean up; format) |
(Add link, image; minor clean up) |
||
| Line 2: | Line 2: | ||
==Overview== | ==Overview== | ||
The L31 Chevy Vortec cylinder head is the best flowing production head for the Gen I SBC engine. | The L31 Chevy Vortec cylinder head is the best flowing production head for the Gen I SBC engine. | ||
| − | |||
| − | |||
==Design limitations and modifications== | ==Design limitations and modifications== | ||
| Line 31: | Line 29: | ||
Unported Vortec’s with the "tricks" can produce 500 HP on well built, high CR, drag race short block. 425-450 HP is more realistic for a killer street engine running on pump gas. | Unported Vortec’s with the "tricks" can produce 500 HP on well built, high CR, drag race short block. 425-450 HP is more realistic for a killer street engine running on pump gas. | ||
'''END''' | '''END''' | ||
| − | |||
==Valve guide boss modification== | ==Valve guide boss modification== | ||
| Line 47: | Line 44: | ||
• If non self aligning rockers ARE used, they '''''must''''' be accompanied by guide plates. | • If non self aligning rockers ARE used, they '''''must''''' be accompanied by guide plates. | ||
| − | |||
==Aftermarket Vortec heads== | ==Aftermarket Vortec heads== | ||
| − | |||
The listing for the GM Vortec heads sold by GMPP says in part: | The listing for the GM Vortec heads sold by GMPP says in part: | ||
| − | Part number (NOT casting number | + | Part number (NOT casting number) '''12558060''' Cast Iron Vortec Cylinder Head Assembly |
• Completely assembled with 1.94”/1.50” valves | • Completely assembled with 1.94”/1.50” valves | ||
• Uses bare head 12529093 | • Uses bare head 12529093 | ||
| Line 101: | Line 96: | ||
*[http://www.chevyhiperformance.com/howto/97458/index.html Iron Vortec Head All the Details You Need to Know] from the February, 2009 issue of ''Chevy High Performance''. | *[http://www.chevyhiperformance.com/howto/97458/index.html Iron Vortec Head All the Details You Need to Know] from the February, 2009 issue of ''Chevy High Performance''. | ||
| + | ==Resources== | ||
| + | *[[Valve train points to check]] | ||
[[Category:Engine]] | [[Category:Engine]] | ||
Your Privacy Choices