Guest Posted February 5, 2002 Share Posted February 5, 2002 just bought a 425 olds. jetstar I , i want to put headers on it...will any olds 400-455 headers fit on? its being dropped in my '72 c/s...is there anything else i should know?<BR>thanks for the info. !! izzyizy@aol.com Link to comment Share on other sites More sharing options...
rocketraider Posted February 9, 2002 Share Posted February 9, 2002 400-425-455 are all the same engine externally so headers listed to fit big-block Cutlass will fit this engine.<P>You have a 370 hp Starfire 425. Almost as hot as it got for Olds 65-67, and capable of creating respect even in a heavy body like a 98. Friend had a 67 98 sedan daily driver, he worked with a kid who drove Daddy's 67 396-325 Chevelle to work every so often, and Britt would terrorize the kid with that land yacht every chance he got. The Starfire engine/switch- pitch THM 400 combo in that raggedy old 98 could get it moving right smartly, once it ever got traction. Link to comment Share on other sites More sharing options...
rocketraider Posted February 9, 2002 Share Posted February 9, 2002 Just out of curiousity. What shape was the Jetstar I in when you decided to yank the engine for your Cutlass? It's a hellacious rare car, only 6552 built in 65, and if it's a 4-speed, less than 200 made.<P>I just hate to see those engines get yanked from a decent or restorable car. Most of the W34 Toronados suffered a similar fate. At least the heart keeps beating... Link to comment Share on other sites More sharing options...
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