Heres some reference material for you.

2jz motors are non-interference
VVTi (98+) 2jz motors are interference

1MZ-FE is non-interference
1MZ-FE with VVTi is interference
3MZ-FE is interference

All VZ blocks are non-interference

http://www.toyotanation.com/forum/archive/topic/37831-1.html

4A-FE is a non-interference
4A-GE is interference

http://www.toyotanation.com/forum/archive/topic/185520-1.html

I also found this:

Engine:      Interference
1.5 (1A-C, 3A-C) Yes
1.5 (5E-FE)      No
1.6 (SOHC)       No
1.6 (DOHC)       Yes
1.8 (Gas)        No
1.8 (Diesel)     Yes
2.0              No
2.2 (Gas)        No
2.2 (Diesel)     Yes
2.4 (Diesel)     Yes
2.5              No
2.8              No
3.0 (Inline 6)   No
3.0 (2JZ-GE)     Yes
3.0 V-6)         No
3.4              No
4.7              Yes

http://autorepair.about.com/cs/doityourself/l/bl_timingbelts6.htm


and here

Toyota Motor Corporation has produced a wide variety of automobile engines. The company follows a simple naming system for their modern engines: 1. The first numeric characters specify the engine block's generation 2. The next one or two letters specify the engine family 3.
The suffix (separated by a dash) specifies the features of the engine: 
Suffix Feature  A Valvematic variable lift intake head 
B Twin SU-style side-draft carburetors 
C Carburated / California Emissions Controlled 
D Twin Downdraft carburetors 
E Electronic Fuel injection 
F Economy narrow-angle valve DOHC 
G Performance wide-angle valve DOHC 
H High compression like 9.8:1 (example: 5E-FHE)High pressure charged (example: 2L-THE) 
I Single-point fuel injection 
J Autochoke (Early models) or unknown pollution control 
L Transverse 
M Philippines' market (meaning unknown) 
N CNG fuel 
P LPG fuel 
R Low Compression (For 87 and below octane fuel) 
S Swirl intake (1980s) 
SE Direct injection (1990s) 
T Turbocharged 
U With Catalytic converter Japan-spec emissions 
V Common Rail Diesel Injection (D-4D) 
X Atkinson cycle (typically also indicates a Hybrid engine, as Toyota only uses the Atkinson cycle with hybrids) 
Z Supercharged   

For Example•
4A-GE  4 - 4th Generation Engine In The A Engine FamilyA - The Engine Family it is inG - Wide-angle dual camshaftE - Electronically Fuel Injected•

22R-TEC  22 - 22nd Generation Engine In The R Engine FamilyR - The Engine Family it is inT - TurbochargedE - Electronically Fuel InjectedC - California Emission Controlled• Note: Toyota, in 1987, began assigning dual letter engine codes to some of the "engine family" categories in some engine lines, particularly six cylinder models. This can create potential confusion.

Eg. 1UZ-FE - This is not a supercharged, narrow angle, fuel injected U-series engine, but a narrow angle, fuel injected UZ-series engine. Confusion is easiest to avoid when using the dash to separate between the engine series and its own characteristics: for instance,
1UZ-FE rather than 1U-ZFE 

Contents 
1 Gasoline/Petrol
1.1 Flat-twin
1.2 Straight-3
1.3 Straight-4
1.4 Straight-6
1.5 V6
1.6 V8
1.7 V12   
2 Diesel
2.1 Straight-4
2.2 Straight-5
2.3 Straight-6
2.4 V8   
3 References
4 External links     

Gasoline/Petrol 
Flat-twin:
1961 - U
1961-1966 - 697 cc U
1965-1969 - 790 cc 2U
1966-1976 - 790 cc 2U-B

Straight-3:
2004 - KR - DOHC
2004 - 1.0 L (998 cc) 1KR     

Straight-4:
1939 - Type C - OHV
1939-1941 - 2.3 L (2259 cc) C   

1947 - Type S - OHV
1947-? - 1.0 L (995 cc) S   

1953 - R - OHV/SOHC/DOHC
1953-1964 - 1.5 L (1453 cc) R
1964-1969 - 1.5 L (1490 cc) 2R
1959-1968 - 1.9 L (1897 cc) 3R
1965-1968 - 1.6 L (1587 cc) 4R
1968-1986 - 2.0 L (1994 cc) 5R
1969-1974 - 1.7 L (1707 cc) 6R
1968-1970 - 1.6 L (1591 cc) 7R
1968-1972 - 1.9 L (1858 cc) 8R
1967-1968 - 1.6 L (1587 cc) 9R
1968-1971 - 1.9 L (1858 cc) 10R
1969-1988 - 1.6 L (1587 cc) 12R
1974-1980 - 1.8 L (1808 cc) 16R
1971-1982 - 2.0 L (1968 cc) 18R
1975-1977 - 2.0 L (1968 cc) 19R
1974-1980 - 2.2 L (2189 cc) 20R
1978-1987 - 2.0 L (1972 cc) 21R
1980-1995 - 2.4 L (2366 cc) 22R   

1959 - P
1959-1961 - 1.0 L (997 cc) P
1961-1972 - 1.2 L (1198 cc) 2P
1972-1979 - 1.3 L (1345 cc) 3P

1966 - K - OHV
1966-1969 - 1.1 L (1077 cc) K
1969-1988 - 1.0 L (993 cc) 2K
1969-1979 - 1.2 L (1166 cc) 3K
1978-1989 - 1.3 L (1290 cc) 4K
1983-1989 - 1.5 L (1496 cc) 5K
1998-1998 - 1.8 L (1781 cc) 7K   

1970 - T - OHV/DOHC
1970-1979 - 1.4 L (1407 cc) T
1970-1985 - 1.6 L (1588 cc) 2T
1977-1985 - 1.8 L (1770 cc) 3T
1970-1983 - 1.6 L (1588 cc) 12T
1977-1982 - 1.8 L (1770 cc) 13T   

1978 - A - SOHC/DOHC
1978-1979 - 1.5 L (1452 cc) 1A
1979-1986 - 1.3 L (1295 cc) 2A
1979-1988 - 1.5 L (1452 cc) 3A
1980-1998 - 1.6 L (1587 cc) 4A
1987-1998 - 1.5 L (1498 cc) 5A
1989-1992 - 1.4 L (1397 cc) 6A
1993-1998 - 1.8 L (1762 cc) 7A
2004 - 1.3 L (1342 cc) 8A   

1982 - S - SOHC/DOHC
1982-1988 - 1.8 L (1832 cc) 1S
1982-1987 - 2.0 L (1995 cc) 2S
1985-2005 - 2.0 L (1998 cc) 3S
1987-1998 - 1.8 L (1838 cc) 4S
1990-1995 - 2.2 L (2164 cc) 5S   

1982 - Y
1982 - 1.6 L (1626 cc) 1Y
1982 - 1.8 L (1812 cc) 2Y
1982-1998 - 2.0 L (1998 cc) 3Y
1985-1993 - 2.2 L (2237 cc) 4Y 

1985 - E - SOHC/DOHC
1985-1994 - 1.0 L (999 cc) 1E
1985-1998 - 1.3 L (1295 cc) 2E
1986-1994 - 1.5 L (1456 cc) 3E
1989-1998 - 1.3 L (1331 cc) 4E
1991-1998 - 1.5 L (1497 cc) 5E 

1990 - TZ - DOHC
1990-2000 - 2.4 L (2438 cc) 2TZ
1997 - ZZ - DOHC æ 1997 - 1.8 L (1794 cc) 1ZZ
1999-2006 - 1.8 L (1796 cc) 2ZZ
2000 - 1.6 L (1598 cc) 3ZZ
2000 - 1.4 L (1398 cc) 4ZZ   

1998 - RZ - SOHC/DOHC
1998 - 2.0 L (1998 cc) 1RZ
1995 - 2.4 L (2400 cc) 2RZ
1995 - 2.7 L (2693 cc) 3RZ   
1999 - SZ - DOHC (by Daihatsu)
1999 - 1 L (997 cc) 1SZ
? - 1.3 L (1298 cc) 2SZ
2006 - 1.5 L (1495 cc) 3SZ   

1997 - NZ - DOHC
1997 - 1.5 L (1496 cc) 1NZ
1999 - 1.3 L (1298 cc) 2NZ 

2000 - AZ - DOHC
2000 - 2.0 L (1998 cc) 1AZ
2000 - 2.4 L (2362 cc) 2AZ   

2003 - TR - DOHC
2003 - 2.0 L (1998 cc) 1TR
2003 - 2.7 L (2694 cc) 2TR   

2007 - ZR - DOHC
2007 - 1.6 L (1598 cc) 1ZR
2007 - 1.8 L (1797 cc) 2ZR
2007 - 2.0 L (1986 cc) 3ZR   

2009 - AR - DOHC
2009 - 2.5 L 1AR æ 2009 - 2.7 L 2AR     

Straight-6:
1935 - Type A - OHV
1935-1943 - 3.4 L (3389 cc) A   

1937 - Type B - OHV
1937-? - 3.4 L (3389 cc) B   

1948 - F - OHV
1948-1975 - 3.9 L (3878 cc) F
1975-1987 - 4.2 L (4230 cc) 2F
1985-1992 - 4.0 L (3956 cc) 3F   

1965 - M - SOHC/DOHC
1965-1985 - 2.0 L (1988 cc) M
1966-1972 - 2.3 L (2253 cc) 2M
1966-1971 - 2.0 L (1988 cc) 3M
1972-1980 - 2.6 L (2563 cc) 4M
1979-1988 - 2.8 L (2759 cc) 5M
1984-1987 - 3.0 L (2954 cc) 6M
1986-1992 - 3.0 L (2954 cc) 7M   

1979 - G - SOHC/DOHC
1979 - 2.0 L (1988 cc) 1G   

1993 - FZ - DOHC
1993- 4.5 L (4477 cc) 1FZ   
1990 - JZ - DOHC
1990 - 2.5 L (2491 cc) 1JZ
1993 - 3.0 L (2997 cc) 2JZ     

V6:
1987 - VZ - DOHC
1987 - 2.0 L (1992 cc) 1VZ
1987-1991 - 2.5 L (2496 cc) 2VZ
1987-1997 - 3.0 L (2958 cc) 3VZ
1993-1998 - 2.5 L (2496 cc) 4VZ
1995-2004 - 3.4 L (3378 cc) 5VZ   

1994 - MZ - DOHC
1994 - 3.0 L (2995 cc) 1MZ
1998 - 2.5 L (2496 cc) 2MZ
2003 - 3.3 L (3310 cc) 3MZ   

2003 - GR - DOHC/VVT-i
2002 - 4.0 L (3955 cc) 1GR
2006 - 3.5 L (3456 cc) 2GR
2003 - 3.0 L (2994 cc) 3GR
2006 - 2.5 L (2499 cc) 4GR

V8:
1963 - V - OHV
1963-1967 - 2.6 L (2599 cc) V
1967-1973 - 3.0 L (2981 cc) 3V
1973-1983 - 3.4 L (3376 cc) 4V
1983-1998 - 4.0 L (3995 cc) 5V   

1989 - UZ - DOHC
1989 - 4.0 L (3969 cc) 1UZ
1998 - 4.7 L (4663 cc) 2UZ
2000 - 4.3 L (4300 cc) 3UZ   

2006 - UR - DOHC/VVT-i
2006 - 4.6 L (4608 cc) 1UR
2007 - 5.0 L (4969 cc) 2UR
2007 - 5.7 L (5663 cc) 3UR     

V12:
1997 - GZ - DOHC
1997 - 5.0 L (4996 cc) 1GZ-FE     

Diesel-
Straight-4:
1974 - B Second gen. - OHV/SOHC
1972-1988 - 3.0 L (2977 cc) B
1977-1982 - 3.2 L (3168 cc) 2B
1980-1990 - 3.4 L (3431 cc) 3B
1984-?Huh??? - 3.0 L (2977 cc) 11B
1984-1990 - 3.4 L (3431 cc) 13B
1988-?Huh??? - 3.7 L (3660 cc) 14B
1996-2002 - 4.1 L (4104 cc) 15B   

1980 - L - SOHC
1977-1983 - 2.2 L (2188 cc) L
1980-200? - 2.4 L (2446 cc) 2L
19??-2006 - 2.4 L (2446 cc) 2L-II change rocker arm to direct tappet drive
1989-20?? - 2.4 L (2446 cc) 2L-E
1991-1997 - 2.8 L (2779 cc) 3L
1997-?Huh??? - 3.0 L (2986 cc) 5L   

1984 - C Third gen. - SOHC
1984-1992 - 1.8 L (1839 cc) 1C
1984-2000 - 2.0 L (1974 cc) 2C
1994-2002 - 2.2 L (2184 cc) 3C   

1986 - N - SOHC
1986-19?? - 1.4 L (1453 cc) 1N   

1993 - KZ - SOHC
1993-? - 3.0 L (2982 cc) 1KZ   

2000 - CD - DOHC
2000-2006 2.0 L (1995 cc) 1CD-FTV   

2001 - ND - DOHC
2001- 1.4 L (1364 cc) 1ND-TV   

2001 - KD - DOHC
2001- 2.5 L (2494 cc) 2KD-FTV
2001- 3.0 L (2982 cc) 1KD-FTV   

2005 - AD - DOHC
2005- 2.2 L (2231 cc) 2AD-FTV
2005- 2.2 L (2231 cc) 2AD-FHV
2006- 2.0 L (1998 cc) 1AD-FTV

Straight-5:
1989 - PZ - SOHC
1990-1994? - 3.5 L (3469 cc) 1PZ 

Straight-6:
1956- D - OHV
1956-??? 5.9 liter 1D
1962-??? 6.5 liter 2D

1967 - H - OHV
Huh???-??? - 3.6 L (3576 cc) H
1980-1990 - 4.0 L (3980 cc) 2H
1986-1990 - 4.0 L (3980 cc) 12HT 

1990 - HD - SOHC
1989-1995 4.2 L (4164 cc) 1HD-T
1995-1997 4.2 L (4164 cc) 1HD-FT
1997- 4.2 L (4164 cc) 1HD-FTE   

1990 - HZ - SOHC
1989- 4.2 L (4163 cc) 1HZ 

V8:
2007 - VD - DOHC
2007- 4.5 L (4461 cc) 1VD-FTV