www.tdiclub.com

Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You




Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

Reply
 
Thread Tools
Old December 27th, 2006, 09:25   #1
6speed
Veteran Member
 
Join Date: Feb 2006
Location: Buffalo, NY
Default AHU block, ALH cylinder head?

Just wanted to know if an AHU block will mate to a ALH cylinder head? It's a long shot, but I don't have both next to me to compare.

I'd like to build a hybrid engine with the later internals in an earlier block to install into a vanagon.
6speed is offline   Reply With Quote
Old December 27th, 2006, 11:33   #2
vwmikel
 
vwmikel's Avatar
 
Join Date: May 2005
Location: Las Vegas, NV
Default

The ALH head isn't going to fit right up to the early block.
vwmikel is offline   Reply With Quote
Old December 27th, 2006, 11:48   #3
BleachedBora
 
BleachedBora's Avatar
 
Join Date: Oct 2003
Location: Gresham, Oregon
Default

I have a new complete cylinder head for an AHU--not the cheap Spanish kind either $895 shipped.
Cheers,
-BB
BleachedBora is offline   Reply With Quote
Old December 27th, 2006, 12:44   #4
mojogoes
Veteran Member
 
Join Date: May 2003
Location: england
TDI(s): mk3 tdi golf
Fuel Economy: not much
Default

No 6speed but if you remove the crank end pully from a mk4 bottom end and refit it to the pd 130hp bottom end it will fit your new head.
__________________
A3 / mk3 golf with 249Whp "Now in the hands of someone else"
mojogoes is offline   Reply With Quote
Old January 20th, 2018, 19:42   #5
Lenard
Member
 
Join Date: Apr 2017
Location: Lake Mills, WI
Fuel Economy: Managing 44mpg with .220 nozzles, on stock turbo and tuned for .208s lol
Default

Whoa explain more? What's this Frankensteining I like the sound of
__________________
1998 Jetta AHU 5 speed SOLD @240Kish
2005 Jetta BEW auto. SOLD @208495K exactly.
1983 Jetta Diesel Coupe 4 speed. SOLD at ? Miles
1997 B4 Passat 1Z 5 speed. Mileage? Current diesel toy
Lenard is offline   Reply With Quote
Old January 25th, 2018, 22:11   #6
Mongler98
Veteran Member
 
Join Date: Mar 2011
Location: Northern MD
Fuel Economy: Race: 12mpg, Gandma:65mpg
Default

Quote:
Originally Posted by Lenard View Post
Whoa explain more? What's this Frankensteining I like the sound of
Maybe things changed since 2006! i never heard of any though, heads are block specific but now we have CNC machines and better welders and some people making custom heads so i guess anything is possible after 12 years
Mongler98 is offline   Reply With Quote
Old January 26th, 2018, 02:42   #7
senso
Member
 
Join Date: Apr 2017
Location: Portugal
Default

I got the idea that you could grab a PD150 shortblock and slap a VP head with some mish mash of pulley matching and using the accessory bracket from the VP into the PD.

That or grab the pistons and rods, sputerred bearings, bore your VP block to accepth the PD pistons and gain a bit more CC and then use the rods and bearings and you have an engine with internals a lot better than the stock ALH.
senso is offline   Reply With Quote
Old January 26th, 2018, 03:35   #8
Yucca
Veteran Member
 
Join Date: Apr 2007
Location: Finland
Default

If you use PD bottom end you have to change trigger wheel.
Yucca is offline   Reply With Quote
Old January 26th, 2018, 21:20   #9
ketchupshirt88
Veteran Member
 
Join Date: Oct 2012
Location: waupaca, WI
Fuel Economy: 40-42 with a lead foot.
Default

Quote:
Originally Posted by senso View Post
I got the idea that you could grab a PD150 shortblock and slap a VP head with some mish mash of pulley matching and using the accessory bracket from the VP into the PD.

That or grab the pistons and rods, sputerred bearings, bore your VP block to accepth the PD pistons and gain a bit more CC and then use the rods and bearings and you have an engine with internals a lot better than the stock ALH.
I think jimbote put an ALH head on a BHW if you wanna look him up.
__________________
2003 Jetta TDI - 11mm IP, R520s and FMIC from the Red Death, HE221W (shooting for 26PSI), 1.8T pancake, DIY 3" OMI, still working on the DIY tune... its a learning process.
1996 Passat TDI - "Red Death" RETIRED. Had: Malone stg 1, 11mm IP, R520s, GT15/17 hybrid, FMIC, ETC
1997 Passat TDI wagon - Running donor or beater for sale, rough body
ketchupshirt88 is offline   Reply With Quote
Old January 27th, 2018, 13:43   #10
[486]
Veteran Member
 
Join Date: Mar 2014
Location: St.Paul, MN
TDI(s): 02 golf ALH
Fuel Economy: 42 stock, 47-49 now
Default

ahu block and alh head, the issue is the oil drains

you can weld them up to the right size for the AHU head gasket
thinking on it further, if the only difference is the big rectangular oil drain, you could get a tube turned to press fit in the head up where the drain is round, JB weld it in there and have it slip fit and extend down into the block. Make sure to run a really unrestrictive CCV system and it might work. Oh right, vanagon, they run the motor just about on its side... Never mind.
ETA: or maybe run an o-ring groove at the bottom of the tube to seal it in the block

I've got an AHU bare head kicking around, but shipping'd be a tremendous pain. I think I got it thinking I'd convert a 1.6D to a DI motor for whatever dumb reason.

Last edited by [486]; January 27th, 2018 at 13:46.
[486] is offline   Reply With Quote
Old January 28th, 2018, 22:06   #11
turbovan+tdi
Veteran Member
 
turbovan+tdi's Avatar
Default

Quote:
Originally Posted by ketchupshirt88 View Post
I think jimbote put an ALH head on a BHW if you wanna look him up.
I've done an ALH head on a BEW short block, its not that much extra work.
__________________
1984 6.2 Diesel Get A Way van, remote turbo setup designed/installed by me, burning anything that burns.
2003 GSW, 2.0L ALH, Stage 2 Colt Cam, 1756 turbo, auto, silver, 380k-Wife's.
2004 GSW TDI, blue, 5 speed-DD-Malone stage 2, no kitty, aeroturbine muffler, PD150's.
2003 JSW 1.8T, silver-parting out. 2006 JSW, TDI 5 speed, blue.
turbovan+tdi is offline   Reply With Quote
Old January 31st, 2018, 06:46   #12
Franko6
 
Join Date: May 2005
Location: Sw Missouri
Default

Why would you want to do that? AHU-ALH? Just because you can doesn't mean you should.
__________________
Frank's VW TDI's, LLC
1007 Olive St.
Lockwood, MO 65682
417-232-4634
FranksTDIs@sbcglobal.net

'02 80k grey leather, 99.5 R.I.P 153k
'85A2 NA 375k, '91 A3 290k Always Silver, Always a Jetta
Franko6 is offline   Reply With Quote
Old February 7th, 2018, 16:28   #13
turbovan+tdi
Veteran Member
 
turbovan+tdi's Avatar
Default

Quote:
Originally Posted by Franko6 View Post
Why would you want to do that? AHU-ALH? Just because you can doesn't mean you should.
Why not? We do lots of things we shouldn't do and they work either well, so so or goes bad quickly,
__________________
1984 6.2 Diesel Get A Way van, remote turbo setup designed/installed by me, burning anything that burns.
2003 GSW, 2.0L ALH, Stage 2 Colt Cam, 1756 turbo, auto, silver, 380k-Wife's.
2004 GSW TDI, blue, 5 speed-DD-Malone stage 2, no kitty, aeroturbine muffler, PD150's.
2003 JSW 1.8T, silver-parting out. 2006 JSW, TDI 5 speed, blue.
turbovan+tdi is offline   Reply With Quote
Old February 7th, 2018, 17:18   #14
turbocharged798
Veteran Member
 
turbocharged798's Avatar
 
Join Date: May 2009
Location: Ellenville, NY
Fuel Economy: 40-50mpg
Default

Theoretically you would have two vacuum pumps as well.
__________________
99.5 Black Jetta TDI; DLC1019 nozzles, G60/VR6, ASV .5mm pistons, EGR delete, ASR/EDL, bilstein TCs MFA cluster.. Beater car. 365K miles and climbing.
99.5 Red Jetta TDI. Saved from the crusher. 270K
04 Jetta TDI .MFA cluster, reverse light mod, bilstein TCs 200K.
turbocharged798 is offline   Reply With Quote
Old February 7th, 2018, 22:55   #15
[486]
Veteran Member
 
Join Date: Mar 2014
Location: St.Paul, MN
TDI(s): 02 golf ALH
Fuel Economy: 42 stock, 47-49 now
Default

Quote:
Originally Posted by turbocharged798 View Post
Theoretically you would have two vacuum pumps as well.
Slap a distributor in there and run spark plug wires to the glow plugs
just to confuse people

not like you really need the GPs on a direct injected motor above 0F anyways
[486] is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 04:36.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
1996 - 2017, All Rights Reserved
Page generated in 0.15922 seconds with 12 queries
[Output: 124.82 Kb. compressed to 103.59 Kb. by saving 21.23 Kb. (17.01%)]