69 Chrysler HP Exhaust Manifolds

MJFUR

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Recently picked up a 69 Chrysler 300 with the 350hp/440. It has the log type exhaust manifolds. I would like to install a set of the HP exhaust manifolds, dual exhaust.

Will the HP manifolds from 69-73 all fit the same or do I need a specific year?
Anyone have the part #'s I can look for? Original vs. Repro?

Thx
 
'69 440:
'69 HP manifold #2806898 R
'69 HP manifold #2863408 L
The C-Body 440 manifolds will bolt on from other years, but the flange locations and flange angles will vary. If you are bending the exhaust on a custom system, that difference can usually be compensated for.
Starting in '70 the driver side manifolds are finned and had heat stoves for the stricter emission standards. Depends on how much of a stock look you want to maintain. You are not going to get a whole lot of a performance boost on a K-Code 350hp engine by going to the HP manifolds, probably something in the area of 10hp. The L-Code 375 hp engines have a more aggressive cam and an AVS carb to gain the extra horsepower.

Dave
 
Last edited:
Thanks for the reply and info.. It's only a K-code for now. lol

I guess I should have asked are the HP manifolds for A-body, B-body, C-body the same or different? Do I need to look for C-Body manifolds specifically?

Thx
 
Last edited:
Thanks for the reply and info.. It's only a K-code for now. lol

I guess I should have asked are the HP manifolds for A-body, B-body, C-body the same or different? Do I need to look for C-Body manifolds specifically?

Thx

You will need C-Body manifold on the driver side as the steering gear location is different than an A or B body. Download the Parts manual at www.mymopar.com, it has the application data in the engine section, look for part numbers that are the same.

Dave
 
Thanks for the reply and info.. It's only a K-code for now. lol

I guess I should have asked are the HP manifolds for A-body, B-body, C-body the same or different? Do I need to look for C-Body manifolds specifically?

Thx
B-body also works on c-body pass side. A-body don't think so.
Driver side is c-body only
69 HP manifold #2806898 R casting # 2806900 1967-1969
69 HP manifold #2863408 L casting # 2803409 also correct for 1968
 
'69 440:
The L-Code 375 hp engines have a higher compression ratio and more aggressive cams to gain the extra 25 horses.

Dave
IIRC the '66-'71 ('72-'73?) 440s all had the same compression ratios between the low performance & high performance variants of a particular year. Only the '70-'71 440-6bbl engines received significantly higher compression ratios compared to the 350hp/375hp engines.


Most of the power difference is from the magnum cam put in the 375hp engines. HP manifolds, windage tray, & a different carb were the other contributing factors.
 
IIRC the '66-'71 ('72-'73?) 440s all had the same compression ratios between the low performance & high performance variants of a particular year. Only the '70-'71 440-6bbl engines received significantly higher compression ratios compared to the 350hp/375hp engines.


Most of the power difference is from the magnum cam put in the 375hp engines. HP manifolds, windage tray, & a different carb were the other contributing factors.

Fixed it. You are correct '69 K & L code were both advertised at 10-1 compression.

Dave
 
Last edited:
IIRC the '66-'71 ('72-'73?) 440s all had the same compression ratios between the low performance & high performance variants of a particular year. Only the '70-'71 440-6bbl engines received significantly higher compression ratios compared to the 350hp/375hp engines.


Most of the power difference is from the magnum cam put in the 375hp engines. HP manifolds, windage tray, & a different carb were the other contributing factors.
Excellent point! Thanks.
 
B-body also works on c-body pass side. A-body don't think so.
Driver side is c-body only
69 HP manifold #2806898 R casting # 2806900 1967-1969
69 HP manifold #2863408 L casting # 2803409 also correct for 1968

@1970FuryConv
Sorry, I'm a bit confused.
Will both the -408 & -409 fit the 69 Chrysler 300 drivers side?
 
The first number is the part #
Casting number is what you see on the manifold.

Is there a way to convert Part# to Casting#? I have the 69 Parts Manual, how would anyone know NOT to look for the Part# when searching for these manifolds? Thx
 
Is there a way to convert Part# to Casting#? I have the 69 Parts Manual, how would anyone know NOT to look for the Part# when searching for these manifolds? Thx

Speaking of @FURYGT, He posted this in another thread. Talk about a wealth of information! Bolds were for my info.

YEAR: 1962-1974
PART CAST SIDE YEARS BODY ENGINE
1739600 2205536 LH 1962-65 D 413
1739600 2205536 LH 1966 D 440
1739600 2205536 LH 1962-63 C 383 413 A C
1739600 2205536 LH 1964 C 361 383 413 A C
1739600 2205536 LH 1965 C 413 PDC
1854990 2205535 RH 1962-63 C 383 413 A C
1854990 2205535 RH 1964 C 361 383 413 A C
1854990 2205535 RH 1965 C 383 413 C
1854990 2205535 RH 1965 C 383 413 426 PD
1854990 2205535 RH 1962-65 D 413
1854990 2205535 RH 1966 D 440
2129194 2129197 RH 1962 C 318
2203091 2203262 LH 1962 C 361 PD
2203091 2203262 LH 1963-64 C 361 383 PD
2203091 2203262 LH 1964 C 426 PD
2203091 2203262 LH 1965 B 361 383 426
2205905 2205896 RH 1962 C 361 PD
2205905 2205898 RH 1963-64 C 361 383 PD
2205905 2205898 RH 1964 C 426 PD
2205905 2205898 RH 1965 B 361 383 426
2268127 2268189 LH 1962-65 BC 318
2268250 RH 1962 C 413 2-4BBL
2268757 2268760 -- 1961-68 ABC 170 225
2269013 2402782 LH 1964 C 413 300-K
2269093 2402781 RH 1964 C 413 300-K
2402335 2402334 RH 1962-64 C MAX PERF-413 426 HEADER
2402337 2402336 LH 1962-64 C MAX PERF-413 426 HEADER
NC# RH 1964 C MAX PERF 426 III TRI-Y
NC* LH 1964 C MAX PERF 426 III TRI-Y
2463106 2463107 LH 1965 C 383 426 PD
2463106 2463107 LH 1965 C 383 C
2463106 2463107 LH 1966 C 383 440 LP
2463106 2463107 LH 1967 C 383 440 LP
2463106 2463107 LH 1968-69 C 383-2 LP/AUTO
2463106 2463107 LH 1968-69 C 440 LP
2465523 1966 A 273
2465718 2465719 LH 1965-69 BC 273 318LA
2465766 2465769 RH 1964-68 AB 273 318LA
2465848 2465847 LH 1964-66 A 273
2465879 2465877 RH 1965 BC 318
2468657 2465657 RH 1964 C 426 HEMI HEADER
2468658 2468658 LH 1964 C 426 HEMI HEADER
2532236 2465657 RH 1965 B 426 HEMI HEADER
2532237 2468658 LH 1965 B 426 HEMI HEADER
2532414 2532415 LH 1966 BC 318
2532459 2532464 RH 1967-69 8 383 LP
2532459 2532464 RH 1966-69 C 361 383-2 440 LP
2532625 2532626 LH 1966 B 361 383
2532625 2532626 LH 1967-69 B 383 LP
2536787 2536478 RH 1966 BC 318
2536787 2536785 RH 1961-67 WD 318
2780502 2780501 LH 1966-69 B 426 HEMI HEADER
2780506 2780508 RH 1966-70 B E 426 HEMI HEADER
-REPRO- 2780611 LH 1966-71 B E 426 HEMI HEADER
-REPRO- 2780518 RH 1966-71 B S 426 HEMI HEADER
2780946 2780945 LH 1967-69 A 273 318LA
2806898 2806900 RH 1967 BC 440 HP
2806896 2806900 RH 1968-69 BC 383 440 HP

2806975 2806974 LH 1967 B 440 HP
2843248 LH 1967 C 440 LP
2843966 2843953 RH 1967+72 ABC 273 318
2843991 2843992 LH 1968 B 383-2 4SPD LP
2843991 2843992 LH 1968-69 B 383-4 440 HP
2863408 2863409 LH 1968-69 C 383-2 LP/38PD
2863408 2863409 LH 1968-69 C 383-4 440 HP
2863545 2863549 RH 1968-70 A E 340
2863552 2863553 LH 1968-71 A 340
2863552 2863553 LH 1970 E 340
2863897 2863900 RH 1967-69 A 383 440 HP
2899001 2899002 LH 1967 A 383 HP
2899954 2899970 RH 1970-71 BCE 383-2 440 LP
2899954 2899970 RA 1972 BC 500-2
2899968 2899879 RH 1970-71 BCS 383 440 HP
2899968 2899879 RH 1972 B 100-4

2946084 RH 1970-71 ABC 318
2946728 2946729 LH 1968-69 A 383 HP
2951124 2951123 LH 1970-71 A 31B
2951217 2951216 LH 1970-71 C 383-4 HP
2951860 2951861 LH 1970-73 C 383/400-2 440 LP/N95
2951864 2951865 LH 1970-71 B E 383 440 HP
2951915 2951916 LH 1970 BCE 318
3418352 3418351 LH 1970-71 C 440 HP
3418452 3418453 LH 1970-71 B E 626 HEMI HEADER
3418620 3418621 LH 1971 B E 340
3418620 3418621 LH 1971 C 360
3418624 3418623 RH 1971-73 AB E 340
3418624 3418623 RH 1971-73 C 360
3462016 3462017 LH 1969 A 440 HP
3462046 LH + RH INDUSTRIAL 400 OLIVER COMBINE
3512076 3512077 LH 1971-74 BCE 318 EXC RM
3577282 RH 1971 B E 426 HEMI HEADER
3614340 2899876 RH 1972 BC 400-4 440 LP/N95
3614367 3614368 LH 1972-74 A 340 360 HP
3614396 3614395 LH 1973-74 A 318
3614801 LH 1972 8 400 440 N95
3614826 LH 1972 C 400 440 N95
3614997 RH 1972 BC 400 N95
3671396 RH 1973 B 318 RM
3671399 3671400 LH 1973-74 B 318 RM
3671583 LH 1973-74 C 360 N95
3671594 3671595 LH 1972 B 400 440 HP
3671634 RH 1973 ARCS 360
3671934 RH 1973 C 440 N95
3698544 3698546 LH 1973 C 440 N95
3744821 LH 1973 C 400-2 440 HP
3751067 3751068 LH 1973-74 B 400 440 HP
3751069 3751071 RH 1973 B 400 440 HP
3751072 3751074 RH 1973 BC 400 440 2BBL/LP
3751083 LH 1973-74 BCE 340 360
3751292 RH 1973 C 440 HP
3751393 RH 1973 BCS 360
3751607 RH 1974 ABCDE 318 E%C RM
3751791 RH 1974 BC 400 440 LP
3751794 RH 1974 C 440 LP/N95
3751795 3769207 RH 1974 BC 400 HP
3769406 RH 1974 B 318. RM
3837601 LH 1974 C 400-2 LP
3837620 LH 1974 C 440 LP/N95
3837621 LH 1974 C 440 HP
 
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