mdlimy Posted January 1, 2011 Report Share Posted January 1, 2011 My TT COP ECU should be on it's way to me at some point in Jan.. so, I'm now thinking more seriously about picking up a newer head. Also wondering about intakes - since the 98 already has longer runners, what potential benefit is there to a design like Ajhehr when the runners will be shorter than what's already there. I can just port the '98 manifold to the later head, as others have done. the main advantage with an intake like aarons is how much more flow it has, the length of the runners is more or less just changing your power band. Link to comment Share on other sites More sharing options...
lookforjoe Posted January 1, 2011 Author Report Share Posted January 1, 2011 the main advantage with an intake like aarons is how much more flow it has, the length of the runners is more or less just changing your power band. Did your newer head have the torx head screws on top of each valve? I'm looking at a couple of heads claiming to be later heads, but it looks like the screws are not present - casting # 1001837 - I'm assuming they are in fact hydraulic lifters.. Another one I've found has the screws,& casting # 1001761 The runners on Arrons & ME7 seem to be much shorter, which from what I'm understanding, would loose bottom end on early setups - I already feel like it's lost enough bottom end with the later spool of the bigger turbos. Link to comment Share on other sites More sharing options...
Volvo5.0 Posted January 1, 2011 Report Share Posted January 1, 2011 Did your newer head have the torx head screws on top of each valve? I'm looking at a couple of heads claiming to be later heads, but it looks like the screws are not present - casting # 1001837 - I'm assuming they are in fact hydraulic lifters.. Another one I've found has the screws,& casting # 1001761 I'm not sure about the casting #'s but for sure if you want the solid lifter head you want the one with the torx screws. They're removable to check valve clearance. Link to comment Share on other sites More sharing options...
mdlimy Posted January 1, 2011 Report Share Posted January 1, 2011 Did your newer head have the torx head screws on top of each valve? I'm looking at a couple of heads claiming to be later heads, but it looks like the screws are not present - casting # 1001837 - I'm assuming they are in fact hydraulic lifters.. Another one I've found has the screws,& casting # 1001761 The runners on Arrons & ME7 seem to be much shorter, which would loose bottom end on early setups - I already feel like it's lost enough bottom end with the later spool of the bigger turbos. as far as i know not all solid lifter motors had them, i believe my 00R motor didnt have them, but they are to check valve clearances, not that big of a deal to me but my current motor has them, i guess it would be nice to be able to check clearnaces but adjusting would require removal of the upper head. ive never heard any slop in any of my solid lifter heads that i would want to adjust for... Link to comment Share on other sites More sharing options...
Alan M Posted January 1, 2011 Report Share Posted January 1, 2011 I'm using a 2004> 2.4 T5 head without valve clearance viewing plugs. Link to comment Share on other sites More sharing options...
ozzimark Posted January 1, 2011 Report Share Posted January 1, 2011 ive never heard any slop in any of my solid lifter heads that i would want to adjust for... Maybe not heard, but that doesn't mean it shouldn't be checked at some point, and the only way to check it is with the cover in place, or with a special camshaft clamping tool. I never checked the clearance, but the cam lobes in my '02 didn't look too happy when I pulled it apart: Granted, that head is busted Where is that new one? :P Link to comment Share on other sites More sharing options...
lookforjoe Posted January 1, 2011 Author Report Share Posted January 1, 2011 Maybe not heard, but that doesn't mean it shouldn't be checked at some point, and the only way to check it is with the cover in place, or with a special camshaft clamping tool. I never checked the clearance, but the cam lobes in my '02 didn't look too happy when I pulled it apart: Granted, that head is busted Where is that new one? Can't see the lobes in that pic - the oil residue look normal, since that show the non-contact area. The journals appear to have a central wear mark - was it oil starved/lacking in maintenance? Link to comment Share on other sites More sharing options...
Volvo5.0 Posted January 1, 2011 Report Share Posted January 1, 2011 Did your newer head have the torx head screws on top of each valve? I'm looking at a couple of heads claiming to be later heads, but it looks like the screws are not present - casting # 1001837 - I'm assuming they are in fact hydraulic lifters.. Another one I've found has the screws,& casting # 1001761 I assumed that on the later heads (without the torx head plugs) that Volvo had gone back to hydraulic lifters. Looking at Vida it appears they did NOT. They still have solid lifters but did away with the inspection plugs. If you get a head without the inspection plugs just make sure it does have solid lifters. I know for sure that the '99 vvt head is hydraulic. Flip over one of the tappets and you'll know. The cams on the '00 (solid) head I'm using has more lift than the "99 (hyd) head I checked :) Link to comment Share on other sites More sharing options...
ozzimark Posted January 1, 2011 Report Share Posted January 1, 2011 Can't see the lobes in that pic - the oil residue look normal, since that show the non-contact area. The journals appear to have a central wear mark - was it oil starved/lacking in maintenance? That's a shot of two cam lobes. I don't know the maintenance history, the engine has 130k on it and came from a C70. Probably wasn't changed frequently enough, or drove too hard after starting. Link to comment Share on other sites More sharing options...
lookforjoe Posted January 1, 2011 Author Report Share Posted January 1, 2011 That's a shot of two cam lobes. I don't know the maintenance history, the engine has 130k on it and came from a C70. Probably wasn't changed frequently enough, or drove too hard after starting. I should have stated more plainly - although it is a pic of two lobes - the focus of the pic is NOT on the lobe tips , but rather on the backside where it is normal for oil residue to accumulate over time (perhaps more so in a poorly maintained or high mileage engine) I assumed that on the later heads (without the torx head plugs) that Volvo had gone back to hydraulic lifters. Looking at Vida it appears they did NOT. They still have solid lifters but did away with the inspection plugs. If you get a head without the inspection plugs just make sure it does have solid lifters. I know for sure that the '99 vvt head is hydraulic. Flip over one of the tappets and you'll know. The cams on the '00 (solid) head I'm using has more lift than the "99 (hyd) head I checked Any idea what year they introduced the baffle in the oil filler? That would be another indicator of the later head, since I've never seen one on a -'00 head. Link to comment Share on other sites More sharing options...
lookforjoe Posted January 1, 2011 Author Report Share Posted January 1, 2011 Will a dual VVT head still fit on a 2.3l block? Did did VVT ever get used on an NA, or is it safe to assume dual VVT is turbo only? Link to comment Share on other sites More sharing options...
mdlimy Posted January 1, 2011 Report Share Posted January 1, 2011 Afaik dual vvt is only on turbo motors. Na usually got vvt on the intake side only. And the dual and single vvt heads should still be the same underneath. Link to comment Share on other sites More sharing options...
lookforjoe Posted January 1, 2011 Author Report Share Posted January 1, 2011 Afaik dual vvt is only on turbo motors. Na usually got vvt on the intake side only. And the dual and single vvt heads should still be the same underneath. So, 2.4 or 2.5L shouldn't matter? I've got a line on a dual VVT head, but can't tell exactly what year. What did you do about the VVT on yours? Blanked off solenoids? Plain hubs? What about timing marks? Link to comment Share on other sites More sharing options...
mdlimy Posted January 1, 2011 Report Share Posted January 1, 2011 So, 2.4 or 2.5L shouldn't matter? I've got a line on a dual VVT head, but can't tell exactly what year. What did you do about the VVT on yours? Blanked off solenoids? Plain hubs? What about timing marks? im using an 01 2.4t head(exh vvt) on an 04 2.5t block with no issues. i just left the vvt solenoid in place like jon did with his 00R motor, havent ran into any problems yet...stock vvt hubs. i plan to go to solid hub and blank the vvt solenoid but just havent done it yet. Link to comment Share on other sites More sharing options...
lookforjoe Posted January 1, 2011 Author Report Share Posted January 1, 2011 im using an 01 2.4t head(exh vvt) on an 04 2.5t block with no issues. i just left the vvt solenoid in place like jon did with his 00R motor, havent ran into any problems yet...stock vvt hubs. i plan to go to solid hub and blank the vvt solenoid but just havent done it yet. Thanks. The dual vvt head I'm buying has no solenoids - they've been removed. I'll have to make blanking plates. I'll have to see if Ajhehr still has blanking hubs. I can also take the opportunity to have a proper cam vent welded to the left forward edge of the cam cover :) Link to comment Share on other sites More sharing options...
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