Hi all,got a question for ya-Is the head on a D reg 320i gonna be the same as the one on my G reg 325i?Ive been told its the same but dont wana buy it if i cant use it!
Cheers,shane
Head question
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Templ8e30
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Nope 320i and 325i heads are different and cannot be interchanged.
The 325i has a raised protion on the piston crown which corresponds to the shape of the combustion chamber in the head. If you fit a 325i head onto a 320i you'll get low compression and if you fit a 320i head onto a 325i the pistons will hit the head and ruin it.
Cheers,
Iain T
The 325i has a raised protion on the piston crown which corresponds to the shape of the combustion chamber in the head. If you fit a 325i head onto a 320i you'll get low compression and if you fit a 320i head onto a 325i the pistons will hit the head and ruin it.
Cheers,
Iain T
2007 Mazda 6 2.0 estate
Political Correctness - A concept based on the idea that its possible to pick up a turd by the clean end !
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E30BeemerLad
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as Ian said, 320 head will not fit onto 325 block n pistons
I have one of each for sale, good 325 head standard, but also modded 320 head so that 325 valves will fit & enlarged ports. Should make good power for anyone with a 2.7 conversion in the pipeline. The 320 head does need some finishing off, but all the major machining has been done.
I have one of each for sale, good 325 head standard, but also modded 320 head so that 325 valves will fit & enlarged ports. Should make good power for anyone with a 2.7 conversion in the pipeline. The 320 head does need some finishing off, but all the major machining has been done.
Cheers guys,that saved me some cash thenE30BeemerLad wrote:as Ian said, 320 head will not fit onto 325 block n pistons
I have one of each for sale, good 325 head standard, but also modded 320 head so that 325 valves will fit & enlarged ports. Should make good power for anyone with a 2.7 conversion in the pipeline. The 320 head does need some finishing off, but all the major machining has been done.
What you selling yours for mate?
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Templ8e30
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Only a 320i head would fit the 525e block because the pistons have the same shaped crown as a 320i.liam012 wrote:whilst ye're on that sort of topic would anyone mind xplainin why either a 325i or 320i head would fit a 525e block?
However, the Alpina C2 2.7 and 2.7 conversions done the 'proper' way use 325i dome top pistons therefore require a 325i head. This version of a 2.7 is more expensive than going down the 525e block/320i head route because of the extra machining required to deck the block (the 325i pistons would sit too low down in the bore at TDC without machining).
Cheers,
Iain T
2007 Mazda 6 2.0 estate
Political Correctness - A concept based on the idea that its possible to pick up a turd by the clean end !