Vortec L31 cylinder head
From Crankshaft Coalition Wiki
(→Tooling) |
(→Upgrading and compatibility) |
||
| Line 191: | Line 191: | ||
There are some inherent costs associated in swapping from 1995-back heads to the L31 Vortec heads. Here is a list of items to be purchased and/or labor associated with the upgrade: | There are some inherent costs associated in swapping from 1995-back heads to the L31 Vortec heads. Here is a list of items to be purchased and/or labor associated with the upgrade: | ||
* L31 heads | * L31 heads | ||
| − | * Springs if the cam has a valve lift over about 0. | + | * Springs if the cam has a valve lift over about 0.440" |
* 1987 to present center bolt style valve covers if the heads used previously were perimeter style (1986 and earlier including the current production Goodwrench 350 crate motor) | * 1987 to present center bolt style valve covers if the heads used previously were perimeter style (1986 and earlier including the current production Goodwrench 350 crate motor) | ||
** Note: [http://www.crankshaftcoalition.com/wiki/Vortec_L31_cylinder_head#Small_port_Vortec_head_p.2Fn_25534351_.28bare.29_and_p.2Fn_25534421_.28assembled.29 GMPP small and large port Vortec heads] and other aftermarket Vortec heads accept either perimeter or center bolt valve covers [[File:Vortec valve-rocker.jpg|thumb|right|300px|Self aligning stamped steel rockers]] | ** Note: [http://www.crankshaftcoalition.com/wiki/Vortec_L31_cylinder_head#Small_port_Vortec_head_p.2Fn_25534351_.28bare.29_and_p.2Fn_25534421_.28assembled.29 GMPP small and large port Vortec heads] and other aftermarket Vortec heads accept either perimeter or center bolt valve covers [[File:Vortec valve-rocker.jpg|thumb|right|300px|Self aligning stamped steel rockers]] | ||
| Line 723: | Line 723: | ||
<td class="wbg-blacktext" align="center" valign="top">Crane Cams valve spring and retainer kit. Drop-in springs with no machine work needed.</td> | <td class="wbg-blacktext" align="center" valign="top">Crane Cams valve spring and retainer kit. Drop-in springs with no machine work needed.</td> | ||
| + | |||
| + | </tr> | ||
| + | <tr class="wbg-blacktext" align="center" valign="top"> | ||
| + | |||
| + | <td class="wbg-blacktext" align="center" valign="top">Vsk4h53</td> | ||
| + | |||
| + | <td class="wbg-blacktext" align="center" valign="top">Alex's Parts valve spring kit. Drop in fit, machine work not required up to .550" Lift, Hyd Roller.</td> | ||
| + | </tr> | ||
| + | <tr class="wbg-blacktext" align="center" valign="top"> | ||
| + | |||
| + | <td class="wbg-blacktext" align="center" valign="top">Vsk4h50</td> | ||
| + | |||
| + | <td class="wbg-blacktext" align="center" valign="top">Alex's Parts valve spring kit. Drop in fit, machine work not required up to .550" Lift, Hyd Flat Tappet.</td> | ||
</tr> | </tr> | ||
Your Privacy Choices