Houseboat Transport & Houseboat News

SBC Block Casting Numbers


Casting #	Years made	Size	HP levels used for	Notes
3703524	55	265	N/A	Passenger First 6 mos. used mech. cam not hyd.
3720991	56 - 57	265	N/A	Truck/Pass
3731548	57	283	N/A	N/A
3556519 3737739	58 - 61	283	220-290	2-Bolt mains/Truck/Pass
3849852	58 - 64	283	220-315	2-Bolt mains/Truck/Pass
3789935 3864812	62 - 64	283	230-315	2-Bolt mains/Truck/Pass
3959512	62 - 63	327	250	2-Bolt mains
3789817 3794460	62 - 64	327	250	2-Bolt mains Truck/Pass
3858174	62 - 67	350, 327 & 302	210-350	2-Bolt mains/Truck/Pass
3782870	62 - 67	327	250-375	2-Bolt mains/Truck/Pass
3858180	62 - 67	327	250-375	2-Bolt mains/Truck/Pass
3791362	65 - 67	327	N/A	2-Bolt mains/Chevy II
3892657 3782870 3903352 3789817	64 - 67	350, 327 & 302	210-350	2-Bolt mains Truck/Pass
3849852 3849935 3896944 393288	65 - 67	283	N/A	Truck/Pass
389257	67 - 69	302	N/A	2-Bolt mains 67 Small Journal (327 block) 68-69 Large Journal (350 block)
3914653 3914636 3932373 3970020	68 - 73	307	N/A	Truck/Pass
3956632	69	307	200	2-bolt mains
3914660	68	327	210-275	2-bolt mains
3790041 3814660 3955618	68 - 69	327	210-300	2-Bolt mains Corvette/Camaro/Hi PO
3914678	68 - 79	350, 327 &: 302	210-350	2-Bolt mains
3855961 3958618 3970014 6259425	68 - 76	350	210-300	2-bolt mains Pass.
3970014	68 - 79	350	200-255	2&4-Bolt main
3956618 3932386	68 - 79	350 & 302	250-300	4 bolt mains Truck/Hi Perf
3970010	68 - 79	350 & 327	145-375	2&4-Bolt mains/Truck/Hi Perf
3932388	69	350	300	4-bolt mains
3951511	70 - 73	400	255-265	4 Bolt mains/HD Truck/Pass
330817	70 - 80	400	150-180	2-Bolt mains
360851	74 - 76	262	N/A	Monza
3951509 3030817++	74 - 76	400	150-265	2 Bolt Mains ++High Nickel Block
460776 460777 460778 361979	78 - 79	305	N/A	Lt. Truck/Pass
14016379	78 - 79	350	N/A	Lt.Truck/Pass
366245*	78 - 79	350	N\A	4-Bolt mains *Bowtie High Tin Dipstick in Pan
1401280 14016376 471511	79 - 82	267	N/A	Passenger
14010201 14016381 14010202 14010203	80 - 84	305	N/A	Lt. Truck/Pass
1401029 14010207 14010209	80 - 85	350	205 & up	2&4-Bolt mains Passenger cars
14011064*	82 - 86	350	N\A	4-Bolt mains/*Bowtie High Tin
14088548 14093638 14316379	86 - 88	350	205 & up	2&4-Bolt mains 1 piece rear main seal.

SBC Head Casting Numbers

Casting #	Years made	Valve Size	HP levels used for	Chamber Size / Notes
3782461	61-70	1.94/1.50 & 2.02/1.6	250-375	64 CC Chambers No bolt holes These are the double humps.
3890462	62-68	1.94/1.50 & 2.02/1.6	250-350	64 CC Chambers No bolt holes These are also double humps.
3927185	69	1.72/1.50	200-210	70cc Chambers
3927185	69	1.72/1.50	200-210	70cc Chambers
3917293	68	1.72/1.50	210	76cc Chambers
3917291	62-69	1.94/1.50 & 2.02/1.6	275-350	64 CC Chambers No bolt holes These are the 'Turbo' heads.
3927186	68-72	1.94/1.50 & 2.02/1.6	290-370	64 CC Chambers has bolt holes These are the 'powerpack' heads.
3932441	67-79	1.94/1.50	250 & 255	76 CC Chambers Intake flow 152 CFM Exhaust flow 93.2 CFM
3947040	68-70	1.94/1.50 & 2.02/1.6	290-370	64 CC Chambers
3947041	68-70	1.94/1.50 & 2.02/1.6	290-370	64 CC Chambers
3973414	64-70	2.02/1.6	360 & 370	64 CC Chambers Z-28 & Corvette LT-1.
3973487	68-79	1.94/1.50 & 2.02/1.6	165-330	76 CC Chambers X casting has 10 more intake cc volume.
3998993	68-79	1.72/1.50 & 1.94/1.50	115-175	76 CC Chambers Intake flow 150.8 CFM Exhaust flow 91.1 CFM
333882	70-80	1.94/1.50	150-180	76CC Chambers Intake flow 137.2 CFM Exhaust flow 95.4 CFM
462624	76-87	1.94/1.50 & 2.02/1.60	Not listed	76 CC Chambers These are crack prone!

SBC Crank Casting Numbers

Casting #	Stroke	Years made	Main\rod Journal Size	Construction / Notes
1130	3.25	68-73	2.45/2.10	Cast large journal
3815822	3.00	67	2.30/2.00	forged Tuffrided Special Flange
14088532	3.48	86-88	2.45/2.10	Forged One Piece rear main seal.
3279	3.00	68-69	2.45/2.10	forged large journal High Perf.
3814671	3.25	68	2.45/2.10	forged large journal High Perf.
3729449	3.00	55-67	2.30/2.00	Forged small journal
3941182	3.48	68-76	2.45/2.10	forged large journal
3923279	3.00	68	2.45/2.10	forged large journal High Perf.
3782680	3.25	62-67	2.30/2.00	Forged Small Journal
3884577	3.25	66-67	2.30/2.20	forged small journal High Perf.
3911011	3.25	68-69	2.45/2.10	cast large journal
3941178	3.00	68-69	2.45/2.10	Forged large journal High perf.
3951529	3.75	70-80	2.65/2.10	Cast large journal Externally Balanced.
3932442	3.48	69-85	2.45/2.10	cast large journal
3892690	3.48	69-85	2.45/2.10	Forged large journal
3941188	3.48	69-71	2.45/2.10	forged large journal High Perf.
3911001	3.25	68-73	2.45/2.10	cast large journal
39411182	3.48	69-85	2.45/2.10	Forged large journal
354431	3.10	75-76	2.45/2.10	Cast large journal only found in the 262, makes good stroker crank for 283's