GP1138 Posted March 6, 2005 Report Share Posted March 6, 2005 Alright, I'm settling this for good now. Are these stamped or roller rockers? Sorry for the horrid pics: Justin posted some helpful pics of roller and stamped rockers, and these look an awful lot like stamped, but then someone else said they were both roller rockers. To clarify: I'm getting ready to do the 3400 top end swap for my auto class project, and I'm trying to make sure I don't need to get 3400 heads for this to work properly. Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted March 6, 2005 Report Share Posted March 6, 2005 I can't really tell by that pic, but if there's a roller on the part of the rocker that pushes on the spring, then it's a stamped roller tipped rocker. Quote Link to comment Share on other sites More sharing options...
Justin Posted March 6, 2005 Report Share Posted March 6, 2005 Yeah, those are stamped. Sorry I didn't clarify earlier, but there are roller rockers, and roller tip rockers. You can have stamped steel rockers with a roller tip, but they're still stamped, which was the point I was trying to get across in the other thread. As far as I know there are no roller tip rockers in any 60* engines from factory, just roller body and stamped body. Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted March 6, 2005 Report Share Posted March 6, 2005 They look like the stamped rockers to me. Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 6, 2005 Author Report Share Posted March 6, 2005 Well, guess I'm getting 3400 heads. I was figuring on that anyway. :x Thanks guys! Here's a pic of my intake, too: Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted March 6, 2005 Report Share Posted March 6, 2005 Nice intake! What year is it from? Quote Link to comment Share on other sites More sharing options...
dbtk2 Posted March 6, 2005 Report Share Posted March 6, 2005 Definately stamped as was already said. Let me know what kinda gain it gives... Shawn Quote Link to comment Share on other sites More sharing options...
cutlassdude96 Posted March 6, 2005 Report Share Posted March 6, 2005 its the 96+ 3100's that got roller rockers Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 6, 2005 Author Report Share Posted March 6, 2005 Nice intake! What year is it from? It's from a 2001 Olds Alero. I thought it was from a Montana van, but I guess it doesn't matter. Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 6, 2005 Author Report Share Posted March 6, 2005 its the 96+ 3100's that got roller rockers I know, but I was told that some '95s got it. Quote Link to comment Share on other sites More sharing options...
cutlassdude96 Posted March 6, 2005 Report Share Posted March 6, 2005 they might have the provions for it Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 6, 2005 Author Report Share Posted March 6, 2005 they might have the provions for it No, the heads are completely different as I understand it. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted March 6, 2005 Report Share Posted March 6, 2005 they might have the provions for it Yeah, I few 95 3100s did have the grooves on the rocker stud hole for the roller rockers. There's no rhyme or reason to which cars/motors had the provisions for it. I remember a post like a year or two back where someone found roller rockers on a 95 3100 at GM dealer they worked at. Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 6, 2005 Author Report Share Posted March 6, 2005 they might have the provions for it Yeah, I few 95 3100s did have the grooves on the rocker stud hole for the roller rockers. There's no rhyme or reason to which cars/motors had the provisions for it. I remember a post like a year or two back where someone found roller rockers on a 95 3100 at GM dealer they worked at. I hate GM sometimes. Quote Link to comment Share on other sites More sharing options...
cutlsp Posted March 6, 2005 Report Share Posted March 6, 2005 only way to know for sure is to take off the valve covers john. Quote Link to comment Share on other sites More sharing options...
Brian P Posted March 6, 2005 Report Share Posted March 6, 2005 ramperstampers... Quote Link to comment Share on other sites More sharing options...
HokemBokem Posted March 6, 2005 Report Share Posted March 6, 2005 What kinda power gains are you hoping to make with this swap? Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted March 6, 2005 Report Share Posted March 6, 2005 I'm tellin ya, if you have the time or money, do a 3400 swap! I can't believe how much grunt the 3400 has over the 3100. The 3400 is only up 20 hp and 20 lb/ft over the early 3100's, but as far as I can tell it's at least on par with a Series I 3800 in the "seat-of-the-pants-dyno" department... Quote Link to comment Share on other sites More sharing options...
HokemBokem Posted March 6, 2005 Report Share Posted March 6, 2005 I'm tellin ya, if you have the time or money, do a 3400 swap! I can't believe how much grunt the 3400 has over the 3100. The 3400 is only up 20 hp and 20 lb/ft over the early 3100's, but as far as I can tell it's at least on par with a Series I 3800 in the "seat-of-the-pants-dyno" department... What about a series 2 3800 Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 6, 2005 Author Report Share Posted March 6, 2005 I'm tellin ya, if you have the time or money, do a 3400 swap! I can't believe how much grunt the 3400 has over the 3100. The 3400 is only up 20 hp and 20 lb/ft over the early 3100's, but as far as I can tell it's at least on par with a Series I 3800 in the "seat-of-the-pants-dyno" department... I would do that if there was some way Patgizz would help me do that. Like, I'd drive up there, and we'd swap it, and I'd pay him about $400 for both the motor and the help. I'm singling out Patgizz because I know he has a 3400 for like $300 he's selling. Plus he lives in Ohio. Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted March 6, 2005 Report Share Posted March 6, 2005 What about a series 2 3800 Naaw, it's not that quick ... Quote Link to comment Share on other sites More sharing options...
HokemBokem Posted March 6, 2005 Report Share Posted March 6, 2005 What about a series 2 3800 Naaw, it's not that quick ...] nothing can overcome a 3800 series 2 Quote Link to comment Share on other sites More sharing options...
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