Which redblocks are non interference engines?

AllHailKingVolvo · Jul 11th, 2018, 10:15

Hi all,
Just a quick Q, does anyone have a list of which redblocks are non interference motors?

Ta!
Phil

Prufrock · Jul 11th, 2018, 11:02

It is a list of one !

Jon.

baggy798 · Jul 11th, 2018, 14:55

Interference engines:

B200 (E, F, G, FT, GT)
B230 (E, K)
B204 (E, F, FT, GT)
B234 (F, G)
All whiteblocks

From the 700/900 FAQ.

Dirty Rooster · Jul 11th, 2018, 17:51

Both of those answers (Prufrock, Baggy) confuse me.

I thought on the four cylinder engine only the 16v head made for an interference engine,
meaning most redblocks aren't.

Someone please explain?

bob12 · Jul 11th, 2018, 18:05

I was unaware the B200F was interference?

Prufrock · Jul 11th, 2018, 18:21

Quote:

Originally Posted by Dirty Rooster

Both of those answers (Prufrock, Baggy) confuse me.

I thought on the four cylinder engine only the 16v head made for an interference engine,
meaning most redblocks aren't.

Someone please explain?

This issue comes up so many times, and there are always conflicting opinions - as far as Redblocks are concerned there is only one version that is non-interference.

But then what do I know ?

Jon.

bob12 · Jul 11th, 2018, 18:46

... and that Mr P is? ..... Don't keep us in suspense!! I guess it's some 16v hybrid with an odd head and camshaft!

baggy798 · Jul 11th, 2018, 19:22

Quote:

I was unaware the B200F was interference?

Me too. But according to a post on turbobricks all B200 engines are interference as the valves will touch the side of the dish and get bent. I'm more surprised that the FT is interference as that has a lower lift cam than the F.

B230E is high compression with a relatively high lift cam.

B230K is interference based on observational evidence.

Quote:

Originally Posted by Prufrock

But then what do I know ?

Less than me, which is saying something.

360beast · Jul 11th, 2018, 19:57

A mate of mine had his 360 glt sat idling and the cambelt snapped (b200e). Chucked a new belt on and it ran perfectly.

I thought all 8v redblocks with the 530 and 531 head were non interference.

barkster1971 · Jul 11th, 2018, 21:39

Bit of bollocks here , b230k with 631 head and b234 are interference engines. The rest are non interference.
A b234 head on a b230 block is where it's very close. If the head has been skimmed then it will probably turn it into interference. ( Valve reliefs cut obviously).

Jul 11th, 2018, 10:15	#1
AllHailKingVolvo Ye olde Volvii galore! Last Online: Dec 18th, 2023 11:23 Join Date: Oct 2017 Location: Sherborne	Which redblocks are non interference engines? Hi all, Just a quick Q, does anyone have a list of which redblocks are non interference motors? Ta! Phil __________________ Barges of Distinction: '96 945 SE LPT M90 '95 945 GLE D24TIC M90 ‘88 745 GL B200E M47

Jul 11th, 2018, 11:02	#2
Prufrock I've Been Banned Last Online: Aug 10th, 2018 09:22 Join Date: Jan 2011 Location: The Lincolnshire Wolds & West Sussex Coast	Magnet post ! It is a list of one ! Jon.

Jul 11th, 2018, 14:55	#3
baggy798 🤍💙💗 Last Online: Today 20:12 Join Date: Mar 2006 Location: Lichfield	Interference engines: B200 (E, F, G, FT, GT) B230 (E, K) B204 (E, F, FT, GT) B234 (F, G) All whiteblocks From the 700/900 FAQ. __________________ MY97 940 CD LPT Super Sports Edition 2 Turbo, Midnight Purple, 175,000 miles.

Jul 11th, 2018, 17:51	#4
Dirty Rooster Premier Member Last Online: Nov 23rd, 2023 14:26 Join Date: Jun 2014 Location: Haltwhistle	Both of those answers (Prufrock, Baggy) confuse me. I thought on the four cylinder engine only the 16v head made for an interference engine, meaning most redblocks aren't. Someone please explain? __________________ 1993 2.0 Turbo SE with 1991 2.0 Turbo engine. Older is better!

Jul 11th, 2018, 21:39	#10
barkster1971 VOC Member Last Online: Apr 12th, 2024 16:38 Join Date: Jun 2009 Location: Swineshead/Salford	definitive Bit of bollocks here , b230k with 631 head and b234 are interference engines. The rest are non interference. A b234 head on a b230 block is where it's very close. If the head has been skimmed then it will probably turn it into interference. ( Valve reliefs cut obviously). __________________ new engine! new car!

Jul 11th, 2018, 18:05	#5
bob12 bob12 Last Online: Yesterday 22:05 Join Date: Aug 2006 Location: Woking	I was unaware the B200F was interference?

Jul 11th, 2018, 18:46	#7
bob12 bob12 Last Online: Yesterday 22:05 Join Date: Aug 2006 Location: Woking	... and that Mr P is? ..... Don't keep us in suspense!! I guess it's some 16v hybrid with an odd head and camshaft!

Jul 11th, 2018, 19:57	#9
360beast Go redblock or go home Last Online: Today 21:11 Join Date: Feb 2012 Location: UK	A mate of mine had his 360 glt sat idling and the cambelt snapped (b200e). Chucked a new belt on and it ran perfectly. I thought all 8v redblocks with the 530 and 531 head were non interference.

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