TFS Cylinder Head and Cam LS1 Package - TFS Rolling Timing Chain

TFS Cylinder Head And Cam LS1 Package Dropping Engine In

RPM	TQ1	HP1	TQ2	HP2	TQ3	HP3	GAIN (TEST 1 VS. 2)
RPM	TQ1	HP1	TQ2	HP2	TQ3	HP3	TQ	HP
3,000	387	221	414	236	358	205	27	15
3,200	385	234	416	253	357	218	31	19
3,400	392	254	431	279	374	242	39	25
3,600	401	275	440	302	396	271	39	27
3,800	404	292	444	321	410	297	40	29
4,000	406	310	451	343	416	317	45	33
4,200	406	325	453	363	419	335	47	38
4,400	403	338	452	379	422	353	49	41
4,600	400	350	450	394	431	377	50	44
4,800	398	364	448	409	446	408	50	45
5,000	395	376	447	425	450	428	52	49
5,200	389	386	448	444	450	445	59	58
5,400	384	395	451	463	455	467	67	68
5,600	378	403	445	474	450	480	67	71
5,800	370	408	436	481	441	487	66	73
6,000	359	410	428	489	432	493	69	79
6,200	351	414	420	496	424	500	69	82
6,400	340	414	409	499	415	506	69	85
6,600	-	-	389	489	397	499	-	-
Peak	406	414	453	499	455	506
Average	385.4	345.6	436.6	398.1	420.2	380.3

Averages taken every 100 rpm between 3,000 and 6,400 for all four tests.

Note how even though Test 4 made more peak power, the average torque of Test 3 versus Test 4 is 16.6 lb-ft per rpm point greater. At 3,200 rpm, for example, the dual-plane makes 59 lb-ft more torque. That's too big a number to ignore!

PARTS LIST
DESCRIPTION	PN	SOURCE	PRICE
TFS GenX LS1 Top-End kit	K306-515-460	Summit Racing	$3,299.95
TFS 220 as-cast LS1 cylinder head	3060T001	Summit Racing	1,699.95
TFS 215 CNC-ported LS1 heads	3060T001-C02	Summit Racing	2,395.95
TFS Track Max roller camshaft	30602003	Summit Racing	349.95
TFS chrome-moly pushrods	21407500	Summit Racing	86.95
Harland Sharp 1.7:1 roller rockers	SLS17	Summit Racing	379.95
Head bolt kit '98-'03 LS engines	12498545	Summit Racing	25.95 (2)
Head bolt kit '04-later LS engines	17800568	Summit Racing	25.95 (2)
GMPP crank bolt	12557840	Summit Racing	4.95
GMPP head gaskets, LS1	12498544	Summit Racing	32.95
Fel-Pro 0.090-thick intake gaskets	1312-4	Summit Racing	31.99
GMPP exhaust gaskets	12617944	Summit Racing	20.39 (2)
Edelbrock LS1 intake and ignition kit	7118	Summit Racing	669.95
Holley 750-cfm HP mech. sec.	0-80528-1	Summit Racing	665.95
TFS roller timing chain	30678533	Summit Racing	129.95

SOURCES
Holley Performance Products 1801 Russellville Rd P.O. Box 10360 Bowling Green KY 42102 270-782-2900 www.holley.com	Summit Racing PO Box 909 Akron OH 44398 800-320-3030 www.summitracing.com
MSD Ignition El Paso 915-857-5200 www.MSDIgnition.com	GM Performance Parts P.O. Box 33170 Detroit MI 48232 800-577-6888 www.gmperformanceparts.com
Edelbrock 2700 California St. Torrance CA 90503 310-781-2222 www.edelbrock.com	Trick Flow Specialties 1248 Southeast Avenue Tallmadge OH 44278 330-630-1555 www.trickflow.com