Page 1 of 1

holden 308 into swb mq...can anyone help me please?!?!?!

Posted: Fri Jan 05, 2007 10:28 am
by CAMOMQ
Gday all ive just started this conversion i have everything i need I THINK...the L28 is out and i have a empty engine bay,i have a dellows conversion kit and the motor i have has the sump drop at the front of the engine im abit worried that this is going to hit on my diff on installation? also my mate said i might have to get a larger sump to overcome oil loss to mains on hill climb...please anyone who has done this conversion could you please help me as i need this completed by next week
any help would be muchly appreciated
many thanks daniel.

Posted: Fri Jan 05, 2007 4:13 pm
by MQ83=MUD
hey mate i hope all the pics and imfo i sent helps you heaps ,, good luck on your mission ,,
my conversion took me a week to do by myself ,,and it was worth every cent ,, and all the bleeding and bruised knuckles :D

Posted: Fri Jan 05, 2007 8:42 pm
by rickstrap
yer the v8 is worth every bit sump has to go to the front so the exhaust runs between the sump and flywheel because of front drive shaft man yule screem blue murder till you turn the key for the first time are you going 4 or 5 speed

Posted: Sat Jan 06, 2007 9:00 am
by Screwy
There are 2 sumps.

a front sump which all the commodore 304 5 litre motors have.....
and a rear sump, which all of the older holden (HJ,HQ,WB) etc have.....

now, one thing to note, they have a different oil pick up as well. the rear sump is a longer pickup that drops into the sump at the back ( as it bolts to the block at the front.... the front sump ones still bolt to the block at the front but drop in more in the middle of the sump.

so when converting to rear sump, you need to remove the oil pickup as well and put one from a rear sump. if you try to use the front sump pickup with a rear sump, you will have no oil pressure as the pickup wont be in the bottom of the sump to get oil.

you can get rear sumps from any old holden motor, all red motors and blue motors had them. the black motors and injected motors have front sumps. all are interchangeable.

next thing is next.... are you intending on converting to a 5 speed or an auto at any stage or sticking with the 4 speed?

i ask this as the 4 speed sits soo far back that if you bolt a 5 litre to it, i think you will find you will get away with a front sump anyway as long as you mount the motor high enough it will never hit the diff cause the motor sits back because of the 4 speed. If you put a 5 speed in then it will hit.

you choice all in all but eitherway, the info is here for you. i have done half a dozen v8 conversions now and a few chevs as well soif you have any further questions feel free to ask.

screwy