408 or 418
408 or 418 I am in the middle of researching for parts on my L92/L76 build and wanted some opinions on things.
Using a 6.0 iron block
First off would be I plan on a totally N/A motor that being said what would be a better route a 408 or 418 i know there really isn't a whole lot of difference there but any little bit helps.
Also I plan to have the l92 heads milled to 65cc chambers will i run into any Piston to head clearance issues on a 418 I will have the block decked some.
Another question is I really only planned on having a little exhaust port work done on the heads them self so would they be enough to even supply a 418.
Using a 6.0 iron block
First off would be I plan on a totally N/A motor that being said what would be a better route a 408 or 418 i know there really isn't a whole lot of difference there but any little bit helps.
Also I plan to have the l92 heads milled to 65cc chambers will i run into any Piston to head clearance issues on a 418 I will have the block decked some.
Another question is I really only planned on having a little exhaust port work done on the heads them self so would they be enough to even supply a 418.
Last edited by 95FbFormula; Aug 20, 2007 at 01:47 AM.
Moved from advanced tech section.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
