I'm taking an engine rebuild class and found a sweet cylinder head from a junkyard Volvo B230F. The odometer was missing, seats have some wear (leather) and the brake and clutch pedal have lots of wear (suggests 200k miles to me). The right front fender and roof (yes the roof!) have big dents with windshield glass broken. The yard got the car on 6/2004. It failed smog in 2/2003. I presume it was in an accident and/or was a police impound. The headgasket is intact. No coolant in the oil and vice versa. I'd like to order parts in advance of the class (to save on rushed shipping costs). Someone told me that I would definitely need new valve guides and seals. I didn't even know that valves had guides and seals (that's why I'm taking the class :>). Any advice on what parts I should buy for this spare cylinder head, which will replace my Brick's cylinder head if/when it blows a headgasket? Oh, and any tips on storing the cylinder head long-term are greatly appreciated.