North American Turbocoupe Organization



opening a can of worms
turbo_crazy Offline
Senior Member
#1
here it comes..

volvo B234F head swap. through the search, i found nothing really recent on this or direct to my questions, but i did learn that it's RDOG's area of expertise. RDOG, i found your links in another post, no need to repost them. i already had 2 of them and bookmarked the others haha.

now, before you guys start jumping in and talking about cost and such, i can mig/tig weld, so i'm capable of making an intake and header. in every thread (here and TF), i read the battle of 'cost' vs buying an aluminum esslinder head. i just want that to be left out of this thread, because i can weld/fabricate and have a couple friends that work at a machine shop, so the machining costs will be minimal than your average joe walking in the door.

now, questions!

as far as oiling goes, how is this handled? i read on 1 page that you tap and plug the oil head on the back of the block deck surface, because the head doesn't cover it. then, on another page i read that an aluminum block was welded to the head, to utilize the oil passage. how is this done? obviously the block has to be drilled in order to feed the oil to the head, but how and where?

as far as fly-cutting the pistons, i know how to do that already. actually, i've done it on a couple occasions, so that's not really an area of needed info.

now. coolant passages, what is done there? i've read on 1 of the pages (or TF threads) that they just 'ported' the coolant holes to meet the holes in the block. i assume it's safe to do so?

dowel pins. how are they handled? machining the head's dowel holes?

4th picture down on this page. how are these coolant passages handled? staying away from welding the block would be a plus for me, as i don't want to touch the block anymore than i have to.
http://www.reocities.com/_nitro_/volvosw...oswap.html

i see giant potential in the B234F swap with the flow numbers of the head in stock form. i just want to cover all bases before i pick up a head and get under way.

and i would also sign up on TF to post these questions, but they require a 'paid' email address (from your service provider or such) and i don't have 1, because i use a cricket broadband usb 'stick,' which is basically like a cellphone (it has a phone number, i can send texts from it haha).
87 TC: 5spd, started B234F head swap (overall setup changing), Quarterhorse, T3/T4 63 a/r, 3" exhaust, walbro 255, tubular front clip, 5 lug swap, 17x8 front/17x9 rear cobra r's, wilwood 4 piston calipers (rear only, for now), lightened 471lbs so far

Not B Anymore Offline
Administrator
#2
You can register at TF with free email. I registered there with my Gmail Account. You need to get in touch with Paul first and he'll set you up. Here's his contact info:
http://www.turboford.org/contact.shtml

Best to call, but I went with email. I've spoken with Paul on the phone before, though, and he's a real easy going, nice guy.

I would suggest getting yourself on TF as there are a few guys over there with B234F conversions who are not on this board.
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels

turbo_crazy Offline
Senior Member
#3
ah, thank you thank you. i saw the part about the paid email and (practically) stormed off like a little girl who was just told 'no more chocolate' LOL. i'll give it a go, thanks B
87 TC: 5spd, started B234F head swap (overall setup changing), Quarterhorse, T3/T4 63 a/r, 3" exhaust, walbro 255, tubular front clip, 5 lug swap, 17x8 front/17x9 rear cobra r's, wilwood 4 piston calipers (rear only, for now), lightened 471lbs so far

RDOG Offline
Posting Freak
#4
Dude, if you read all the links I posted, it answers every single one of your questions.

I make these heads for fun, and have made over 26 of them to be exact, with 5 known that are on current track cars.

Questions that I have been asked.
1) Why dont you sell the SS one piece valves with your heads?
answer: Why? Do you know anyone yet who has had the stock SS valves fail? Not yet, to my knowledge.
2) Do you do anything with matching water ports?
answer: no, there is enough where it doesnt effect anything
3) Why dont you add more material between the #3 and #4 cylinder on the head?
answer: Because its not necessary, plus it will change the compression of the #4 cylinder

What I do to the heads...
The modifications are....
1) Cut the water outlet off and made flat to remove unnecessary water outlet and create that stock appearance.
2) Aluminum block welded to the back of head to mimic the length of the Ford 2.3 head
3) Oiling puddle created as part of block added to mimic the 2.3 head for internal oiling
4) Braided line going to upper cam section from aluminum block, for internal cam oiling to upper cam tower
5) Resurfaced using a mill and not a belt sander for a perfectly flat surface
6) Oil returns welded shot and then 2 re-opened to mimic the oil returns of the 2.3 head gasket and short block
7) Head Dowels machined in head to match the short block and dowels of the 2.3 head for easy installation and perfect seating of head and head gasket.

My head Mod pics.....
http://i158.photobucket.com/albums/t97/b...pare-1.jpg
http://i158.photobucket.com/albums/t97/b...s/main.jpg
http://i158.photobucket.com/albums/t97/b...oiling.jpg
http://i158.photobucket.com/albums/t97/b...ompare.jpg
http://i158.photobucket.com/albums/t97/b...voback.jpg

My intake...
http://i158.photobucket.com/albums/t97/b...efront.jpg
http://i158.photobucket.com/albums/t97/b...bottom.jpg
http://i158.photobucket.com/albums/t97/b...inside.jpg
http://i158.photobucket.com/albums/t97/b...ns/top.jpg
http://i158.photobucket.com/albums/t97/b...aketop.jpg
http://i158.photobucket.com/albums/t97/b...keside.jpg

Folvo Links with venders AGAIN.........
Links...
http://autos.groups.yahoo.com/group/2300-16V/

http://www.turboford.net/cgi-bin/ultimat...047427;p=1


http://www.merkurtech.com/merkurtech/tec...tem045.php


http://autos.groups.yahoo.com/group/2300-16V/

http://www.youtube.com/watch?v=2wvZICY3-Dw

http://www.youtube.com/watch?v=jMsMHvGwb...re=related

http://s29.photobucket.com/albums/c272/c...925531.mp4

http://forum.turboford.org/cgi-bin/ultim...3;t=030259

Block Mod method

http://amcansolutions.com/amcandocs/docs/

http://forum.turboford.org/cgi-bin/ultim...727#000011

Valve releifs for pistons
http://forum.turboford.org/cgi-bin/ultim...915#000000

twin-T3-skiddo WERGS parts
http://forum.turboford.org/cgi-bin/ultim...6;t=014588

Folvo Parts
http://forum.turboford.org/cgi-bin/ultim...6;t=008780

Volvo aftermarket parts and belt and tensioner setup
http://yoshifab.com/store/index.php?_a=v...oductId=47

You have to ask yourself, if you were a vender of SOHC heads and parts would you outright say that a Folvo is a better way to go? Would you post outstanding flow numbers that discredit the SOHC head? The answer is H3LL No!! Heck, I brought Essy one to play with and they wont even touch it.

The only way to really find your answers is JUST DO IT!!
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!

turbo_crazy Offline
Senior Member
#5
i haven't gotten through all of the links yet, i'm steadily getting there. it's a lot to take in, all at once haha. thanks for the additional pics and such!
87 TC: 5spd, started B234F head swap (overall setup changing), Quarterhorse, T3/T4 63 a/r, 3" exhaust, walbro 255, tubular front clip, 5 lug swap, 17x8 front/17x9 rear cobra r's, wilwood 4 piston calipers (rear only, for now), lightened 471lbs so far





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